I absolutely love this channel, it is so good at explaining what is happening even for people like myself who have seriously limited education. Yes many things go over my head but what I can grasp is just so fun. Thanks so much for explaining, sharing and posting.
It's not American. And it's not as sexy as jaw-dropping high resolution images. It's going to build a "boring" map. Dr Becky can explain why that is exciting, but most news producers can't.
In spite of the previous comments it is in the news. It depends where you get your news from and what you are prepared to read and listen to. Most people seem to get their news from TikTok and ‘social influencers’. Expand your horizon.
Thank you so much for explaining these concepts, which appear so distant and daunting to a retired language teacher, and making them seem close, friendly and clear.
Euclid is expected to provide valuable insights into the nature of the accelerating expansion of the universe and the distribution of matter on large scales. The data collected by the mission will contribute to our understanding of the fundamental properties of the universe and potentially revolutionize our knowledge of dark matter and dark energy. Beyond excited.
Trust me, everyone at ESA would rather see this mission to be flown on Ariane, but this program currently has a lot of delays and issues, so alternatives had to be found.
@@SolaceEasy Falcon 9, denigrated by some as only a low earth orbit rocket will now span 2 million miles, becoming the only rocket type to send missions to both L1 and L2 LaGrange points, 1 million miles sunward to the L1 LaGrange point for DSCVR, and now 1 million miles anti-Sun to the L2 LaGrange point for Euclid. These LaGrange points are each four times the distance to the Moon away from Earth. 2 Lunar missions also for Falcon 9 for Israel and India have shown it to be incredibly versatile. Still, would have been great to see Euclid on top of an Ariane.
This is the furst time an astronomer has pointed out the plane of the solar system to me. Compared to milky way that is. I wish I had seen that decades ago.
As always, wonderful information! I love that you are such an awesome role model for young people, and you keep us older folk excited to keep learning ❤🎉
It will be hard to wait for the first major Euclid discoveries, but after going through the hell of Webb's many launch delays and then the time it took to unfurl, position, and calibrate it, l think l have learned enough patience to chill out and enjoy the ride.
First time in my life that i feel like endorsing a sponsorship: babbel is really great. True words, not joking nor trolling. And dr Becky is just great! :-)
Hey Dr Becky - I just finished reading a fantastic book. I LOVED IT. Yours! You presented a lot of material, in a way most can easily understand. I was in college in the early 70s, freshman year, - I wanted to become an astronomer. junior year, my school offered a 'computer class - this is COOL! - a thought - maybe there is a future here. But those were really fascinating days - so much new strange stuff being discovered., Didn't understand them ... Neutron Stars, Pulsars, Quasars, Cygnus X-1? a 'black hole'? (FYI, Black holes were my favourites too) Thank you, for writing this 'spunky!', fun to read, book, and to the level most can also enjoy.. Your wonderful sense of humour made my reading all the more enjoyable. Recommending it to my family, and friends, many with some interest in the cosmos. Wishing you all the best, And Of course, I follow your RUclips update/posts - wouldn't want to miss one. Paul. Amateur Astronomer, Dutch-Canadian, loves ADHD, living in the USA.
Years ago I wanted to make a huge circle with a triangle in it with twinkling lights as decoration for a dance, I was a part time DJ. After stringing the circle I couldn't figure out for the life of me how to string a perfect fit equilateral triangle in the center. The other day I finally came up with a solution, draw the triangle first! All these years I kept on thinking of a solution.
In the same way that you have laid out your circle. Choose a point on your circle to be the apex of your triangle. Using the same length of string, mark, to each side of that point a new point on your circle. From each of those new points, still using the string, make another point on the circle, farther around. These last two marks and the apex form your triangle.
@@Deipnosophist_the_Gastronomer brilliant, you didn't explain to me why it would work though, tried first then figure it out. The radius of a circle is equal to the legs of an equilateral triangle with 2 vertices on the circle and the 3rd vertex at the center. The angle pi/3 is 1/6th of pi*2. This exercise made me wonder. Back when they were figuring out all of this geometry did the drawing of a perfect circle come much later in the discussion? Starting out it was just all angles and measurements right? When we learned it in school we had already seen perfect circles, we were used to seeing them, but back then they had never seen one. At some point they staked a string down in the center of some sand and drew a perfect circle around it and everyone said ahhhhhh, it's magic!
Love your channel. I'm EECS, so this not my expertise. I used to be on a UC wide committee that, when at UCSC, Joel Primack attended. We sat next to each other and he fascinated me with the study of dark matter. Permanently bitten by the bug.
We already know it isn’t though? Like, that’s what general relativity describes: the ways in which spacetime doesn’t just have the flat metric of diagonal(-1,1,1,1) Edit: by which I mean, isn’t Euclidean, I.e. is non-Euclidean.
3:42 -- Here's to another Opportunity-style extension. The little guy served us for 15 glorious years after its planned initial 90 day mission. What a trooper.
Excellent video as always Dr Becky. Love that you show your outtakes and failures at the end as well, so that we know that even an intelligent scientists can make some minor mistakes.
Thanks for another wonderful explainer. You really do a fine job at this. BTW, I must have come across the information before, but it was interesting to see how the plane of the solar system relates to the plane of our galaxy. And finally, there was something quite special about seeing the hard working Beckyhands (that's a word now) behind the graphic of Euclid.
That is exciting, but heartbreaking to hear we will have to wait a long time until they publish the first batch of data... So, no discoveries will come from this for years.
I'm really exited to understand more about dark matter! I've never understood why we see its effects on the scale of galaxies, but not solar systems. It it perhaps that we got lucky (or unlucky?) and our solar system has almost no dark matter and we might one day find a solar system with a star full of dark matter, or is that dark matter only coalesces on the scale of galaxies but not solar systems for some reason?
It's the latter - gravity tells matter how to move but the electromagnetic force tells it how to collide. Dark matter only sees the former so it doesn't clump in small scales like individual solar systems, it scoots out like it scooted in. It's easy to forget that essentially all the baryonic mass in a few cubic lightyears around us is in the Sun. Dark matter on the other hand is distributed much more evenly in that same volume so that the entire mass of it contained within 1 AU of us is something ridiculously small like the equivalent of a basketball or something like that, far too small to affect anything measurably.
You might even find areas where space travel may be easier due to certain types of cosmic drift. Just another thing to keep an eye on. Truely, thank you for everything you do.
I'm looking forward to seeing the postage stamp images actually printed on postage stamps. How cool that would be? I love listening to you explain the science. ❤
I first heard about this mission back in 2016 as it was featured on an episode of BBCs Horizon. The episode was called The Mystery of Dark Energy and it had some of the British scientists of the mission talking about it.
Thank you for the info...Wow!!! I love the energy that you have delivering this content or is it that I love this content so much that I find it hard to ignore your love for this content.
As I recall, there were no major problems during JWST's launch. I hope they're being just as careful with Euclid if it is going to L2. Would be a shame if something minor ruined the mission.
From your mouth to God’s ears ;) The Chief Scientist of JWST knew they’d all done everything they could and was rightfully confident, but I couldn’t watch the launch….
ESA's reliability record for deep space craft has been incredible. Rosetta was launched in 2004, spent 10 years surveying asteroids 21 Lutetia and 2867 Šteins, along with two Earth flybys. In 2014 Rosetta rendezvoused with Comet 67P/Churyumov/Gerasimenko, becoming the first spacecraft to orbit an object that small and discovering the comet resembled a rubber ducky to the absolute astonishment of the world. Rosetta spent two years orbiting the comet, sending its landing probe Philae to the surface and finally landed on the surface of the comet to end the mission in 2016. To date the most astounding mission in human history has been the ESA probe Gaia, which was the very first probe to orbit the Earth-Sun L2 LaGrange point, beating JWST by several years, arriving on station and fully cleared to begin scientific observations in July, 2014. Since then, Gaia has observed more than 1.8 BILLION individual stars, mostly in the Milky Way galaxy. It observes each star over a period of years, measuring with ever increasing accuracy through the years, each star's spectral type, magnitude, variability curve, 3 dimensional motion (both proper motion across our field of view and radial velocity toward or away from the observer). We think Tycho Brahe was a hero of astronomy. Gaia makes him look like an amateur. Thanks to Gaia, we now have an animated map of 1.7 or so billion Milky Way stars that we can animate to run time forward and backward to determine the history of our galaxy. One of the discoveries is that several billion years ago, the Milky Way absorbed another galaxy, called Gaia Enceladus, and incorporated its stars, which still differ both in motion and chemistry from native Milky Way stars. Our neighborhood is uncharacteristically dense in Gaia Enceladus stars, although the Sun itself is a native Milky Way star. We now have actual case study on what happens when galaxies collide! Gaia is still going, having released Gaia Data Release 3 in 2022. You can download and plot the Gaia database using the free astronomy program Cartes du Ciel (Skycharts), my absolute favorite astronomy program. So ESA has beat NASA to all these milestones with demonstrated great reliability. I have no doubts that Euclid won't ruin their record. We unfortunately don't talk much about ESA in the US, but they are very much equal to JPL and NASA in the US.
@@RockinRobbins13 The thing is this is not a ESA rocket and many early SpaceX missions did not deliver satellites to their contract orbits. The satellites had to use their own fuel to get to orbit and thus shortening their mission life times. SpaceX has not delivered many satellites to these distant orbits Luke L2.
@@mrbaab5932 Wrong on two points. First of all, SpaceX is the first rocket company to use a single rocket type, the Falcon 9, to send missions both one million miles toward the Sun to the L1 LaGrange point, that's the DSCVR mission, and to 1 million miles in the anti-sun direction to the L2 LaGrange with the Euclid mission. In addition, Falcon 9 has delivered at least three probes to the Moon. Kick stages don't shorten satellite missions either. They aren't part of the satellite. Secondly, ESA is not a rocket company. They are like JPL, developing probes. Most of the time they like to use Ariane rockets because France is a member of the EU, but they have also used Russian rockets, like they did for Gaia.
That was a really good explanation. I understand now why I keep getting updates on Euclid. Odd thing: I'm looking at the weblike structures of matter and think of the structure of aerogel. It's odd how you get similar structures at different sizes through different mechanisms.
Not so odd… universal information tends to conserve itself; it all has the same underlying structure, and therefore tends to manifest in similar but different “routes up from ground”.
it is conceptually a similar mechanism - gravity tries to pull all the matter together in the universe, surface tension tries to pull all the liquid together in bubbles and aerojels
@@reasonerenlightened2456 it does "realise" in as much as its energy decreases as its wavelength is increased - that is why the cosmic microwave background (originally emitted as roughly the same optical light as the surface of our sun) has been so far red-shifted it has left infrafred and become microwave.
Which only reaffirms my belief that yes, there IS a unified field theory. It's just that our understanding of the universe is actually quite limited. We have come a LONG way in a short time, but for every fact we think we know, there are (obviously) quadrillions of things we don't. For all of our advances, the truth is that we are still very much in the "baby steps" phases of physics and cosmology. The million dollar question is will we advance enough to take that leap or wipe ourselves from existence first? Either way, the universe will still carry on because we are less than a dust speck on the cosmological scale
I just had a stroke of genius, now I know what dark matter and dark energy is. Oh my gosh, it's so beautiful! Why has nobody thought about that before?
A RUclips video suggested that Dark Matter might be made of Bose-Einstein Condenscates formed when the temperature in places got low enough to form them. If so, they would be an interesting material to find.
Excellent Video Dr Becky !!! Do you know if the data would be public “available” like other missions we might find at Mikulski Nasa Archive site, or the data will be restricted only for “special” people ?
Euclid❤ End of primary mission: when? 2) How could it be used for a secondary mission? 3) 3rd mission… what novel utility would be fun/interesting if you could use it? Resolution: What would Euclid’s ultra-deep look like? Understanding this is a survey (and considering the orbit of earth around the sun), what is the longest exposure time possible for a single target pixel/galaxy look like (how would its resolution be different than the Hubble, JWST, overlap/composite) (yes, ignore the motion of the galaxies outside the target pixels)? Artifacts: Single pass to capture 1/3rd of the sky? Multiple passes would phase out the image artifacts.
@@ericneff9908 You can prove flat earth by putting water on the bottom side of a wine glass. You'll see it only stays on the flat bit and not on the bulb.
fun fact: mass production reduces cost per unit. a basic truth in manufacturing can be applied to astronomy to dramatically increase our knowledge of the universe. whatever the cost to develop a space telescope can bedeviled by the number of telescopes made to the point where the fraction of the development cost applied to any given telescope becomes less than the material cost of the given telescope. this can be used to produce enough satellites to see not only the whole sky simultaneously but to see the whole sky from viewpoints we normally could not see at the same time. with enough space telescopes in multiple orbits around the solar system we could see any object on a collision course with earth even if it were coming from a direction that we normally would not be able to see such as from behind the Sun.
Was listening to your book. Absolutely love it btw! A question, if you flip it around and an alien was looking through the James Webb Telescope and observing our galaxy. What would it be able to pick up from say Andromeda galaxy?
Considering the massive amount of data that Euclid will collect, it will likely be advantageous for astronomers to utilize machine learning algorithms to help them comb though and analyze the data. Hopefully that will mean that most of the serendipitous discoveries don't go undiscovered for a very long time as you suggest they will.
Thank you a lot for this video! Euclid seems to be very interesting in the future. Just one question that I have in my mind for longer now: When you are talking about spectrums you are always saying that the light is split by a prism. Is that really the way they do it in telescopes? Or do they use rather diffraction gratings? At least in my physics studies I barely work with prisms but much more with diffraction gratings...
I enjoyed how, in the timeline segmentation for the video player, you put the division between two of the segments, in the middle of the Babbel ad xD You got me that time! But next time, I will know your tricks muahahaha
Thank you so much for this video. I am sure it takes a lot of work to create such informative videos. Every semester I recommend your channel to my students in my astrophysics course (college level) because everything is well made and relevant. But I am wondering why there are sponsors for the videos. It surprised me that a Oxford professor chose to have sponsors for the outreach they make. I am sure it is a well thought decision, but it would be appreciated if you could explain a little bit if possible.
You are So happy with your career. I am glad. I wanted to pursue several types of subjects however my Math is really bad. Oh well. Such is life. Keep up the good work. I unfortunately won't get to see what you will. You are young. Enjoy you're life at it's fullest. Trust me time Screams by so fast.
If you're using a relatively recent DSLR or mirrorless DSLR the sensor overheat message at 29 minutes or so of recording is so the company can avoid the tax on selling video cameras vs selling still cameras (that happen to shoot video). Also, if you're using a Canon checkout Magic Lantern, its an alternate firmware that you just drop on the SD card and it unlocks A ABSOLUTE TON of features on Canon cameras, like continuous recording for longer than 30 min (which is the tax cut off point, longer than that and its a video camera. Although, it still is possible for the sensor to overheat, so ya know....keep that in mind). Like, so many features.....its insane. Many only available on the higher end models, some not available on Canons at all. Its mostly safe, Ive used it in my D1200 for a while, never had a problem, but then again I dont do much crazy stuff with it. I highly recommend it to every Canon owner I meet.
Dr. Becky when I see examples of this kind of survey telescope I wonder how they adjust for the fact that most of they objects are moving as the telescope scans the sky. How do they compensate for the positions of objects having changed by the time it gets a complete survey?
Hi there Dr Becky. It's great to see this new telescope launch and it's missions objectives are exciting. I, however, don't believe in the existence of dark matter. I would put all my money on it if I were to bet. About 30 years ago a young man went to university and was asked a question. "Do you believe in the big bang?" I'd never considered an alternative until that moment. I went to the library as there was no internet back then. I really wanted to understand the theory before I challanged it. I then looked for flaws in the theory like why galaxies don't fly apart and why space is expanding seemingly faster and faster. I didn't know about the theories of dark matter and energy until I read about it. I then came up with a New theory of the universe which explained these phenom but the lectures weren't interested. You could not imagine how I felt. Why ask the question and not have the patience to at least hear my theory. But, alas, it gets better. Later I was actually asked to leave uni. Yes I was thrown out. Admittedly my pass rate was not the best 50/50. The head lecturer a Dr of Physics told me I was very bright but the University has a reputation or standard to uphold. Some other lecturers were not too happy with what happened and assured me it will never happen again. They looked up my IQ test from my entry exam and a huge argument was had between them but the majority voted against me. It was a disastrous 2 yrs for me having a car accident and the rest. So I say to you here that space itself, without the existence of dark matter, bends the light as it travels past matter or through galaxies. I know this sounds strange but space is not uniform. This is why the stars in galaxies spin faster the futher they are from the center. Space conducts matter. The density of space makes it easier for matter to travel through it. As you get closer to the galactic center space becomes less dense until you reach the tare in the fabric of space known as black holes. Hopefully Physicists will realise this when this telescope finds nothing. I mean dark matter does not exsist but dark energy does exsist as I'm sure alot of other discoveries will be made from the data. Anyway, sometimes you just have to wait until they catch up. Cheers from downunder.
Dear Dr Becky, as ever a fascinating vid! Please forgive this digression but would it be possible to teach us how to find Aquila in the night sky in the coming summer months? Summer in the UK, that is. Thanks!
not too related to the video, however, I think a video talking about the different mass gaps in BHs would be fairly interesting. Such as the BH NS formation mass gap and the pair instability mass gap. But in regards of Euclid I am very excited to see what kind science we find!
You lost me at 10 billion light years away. As soon as I heard that I started trying to imagine what that even means as a distance. I don’t think anyone can actually fathom that incredible distance.
How do the scientists account for gravitational lensing in the data received by Euclid? Sometimes it's obvious in an image, but otherwise how do we know if an object has been lensed? How do we know it's true position and distance?
I heard that they recognize an object is the same (eg when lensing produces two images of it) because each galaxy has a very distinctive spectrum of light, like a fingerprint. For position and distance there’s not a definitive method. I think they use redshift for galaxies, that is the more the light is stretched towards the infrared the more the galaxy is far away. It’s an estimate: I understand astrophysicists can’t be totally sure of the measurement. If you want more details you’ll have to google or search RUclips. I am pretty sure that there’s videos about these topics. Cheers.
Plus think about what kind of tools will be available in December 2025, when the first data will come out. We might be able to parse the data really really effectively!
The discovery of dark matter just proves what I've believed my whole life... We live in a peanutbutter universe. Now we just need to figure out if it's creamy or crunchy. My bet is crunchy.
A small mistake. With the surrounding context, I think most will still know what you mean; but you misspeak at 3:09 by saying a broad survey "will only detect the faintest of things." With lessening exposure, the bright objects are detected first.
I absolutely love this channel, it is so good at explaining what is happening even for people like myself who have seriously limited education. Yes many things go over my head but what I can grasp is just so fun. Thanks so much for explaining, sharing and posting.
It s fake nonsense wake up
Dr Becky's revelation of Euclid's mission raises the question "why aren't we hearing more about Euclid in the news? "❤
Busy looking for submarine debris while not drinking bud light, I guess.
It's not American. And it's not as sexy as jaw-dropping high resolution images. It's going to build a "boring" map. Dr Becky can explain why that is exciting, but most news producers can't.
@@tiredlocke 👍
Because it doesn't increase their TV ratings
In spite of the previous comments it is in the news. It depends where you get your news from and what you are prepared to read and listen to. Most people seem to get their news from TikTok and ‘social influencers’. Expand your horizon.
In the space of 15 minutes I started off not knowing or caring about the Euclid telescope, and now I can't wait to see what it finds!
Thank you so much for explaining these concepts, which appear so distant and daunting to a retired language teacher, and making them seem close, friendly and clear.
Euclid is expected to provide valuable insights into the nature of the accelerating expansion of the universe and the distribution of matter on large scales. The data collected by the mission will contribute to our understanding of the fundamental properties of the universe and potentially revolutionize our knowledge of dark matter and dark energy. Beyond excited.
I would wager that dark-matter is the modern equivalent of the Luminferous Aether.
Vis: fictional.
@@MichaelKingsfordGray It's the Force.... it's everything you need it to be to get your grant approved!
@@wrayday7149 A good analogy.
Alec Guiness hated the saying.
that comments feels like it's been written by chatgpt
@@mahmutucak2293 So does yours!
JWST on Ariane 5 in French Guiana, and now EST on Falcon in KSP, FL. It is nice to have so many international options today for high-value launches
Trust me, everyone at ESA would rather see this mission to be flown on Ariane, but this program currently has a lot of delays and issues, so alternatives had to be found.
Smaller = Options.
@@SolaceEasy Falcon 9, denigrated by some as only a low earth orbit rocket will now span 2 million miles, becoming the only rocket type to send missions to both L1 and L2 LaGrange points, 1 million miles sunward to the L1 LaGrange point for DSCVR, and now 1 million miles anti-Sun to the L2 LaGrange point for Euclid. These LaGrange points are each four times the distance to the Moon away from Earth. 2 Lunar missions also for Falcon 9 for Israel and India have shown it to be incredibly versatile. Still, would have been great to see Euclid on top of an Ariane.
@@_TeXoN_ Why?
This is the furst time an astronomer has pointed out the plane of the solar system to me. Compared to milky way that is. I wish I had seen that decades ago.
As always, wonderful information! I love that you are such an awesome role model for young people, and you keep us older folk excited to keep learning ❤🎉
It will be hard to wait for the first major Euclid discoveries, but after going through the hell of Webb's many launch delays and then the time it took to unfurl, position, and calibrate it, l think l have learned enough patience to chill out and enjoy the ride.
How come a photon does not realise it is getting stretched as it travels with the speed of light?
@@reasonerenlightened2456 probably because photons don't think.
Thank you so much for your great lectures, spell bounding! As a 75 year old navigator I love to know now what will be when I am gone.
Keep on a-learnin'!
First time in my life that i feel like endorsing a sponsorship: babbel is really great. True words, not joking nor trolling. And dr Becky is just great! :-)
Thanks for explaining it! Good work
Survey telescopes are so cool, lots of data
Hey Dr Becky - I just finished reading a fantastic book. I LOVED IT. Yours!
You presented a lot of material, in a way most can easily understand.
I was in college in the early 70s,
freshman year, - I wanted to become an astronomer.
junior year, my school offered a 'computer class - this is COOL!
- a thought - maybe there is a future here.
But those were really fascinating days - so much new strange stuff being discovered.,
Didn't understand them ... Neutron Stars, Pulsars, Quasars, Cygnus X-1? a 'black hole'?
(FYI, Black holes were my favourites too)
Thank you, for writing this 'spunky!', fun to read, book, and to the level most can also enjoy..
Your wonderful sense of humour made my reading all the more enjoyable.
Recommending it to my family, and friends, many with some interest in the cosmos.
Wishing you all the best,
And Of course, I follow your RUclips update/posts - wouldn't want to miss one.
Paul.
Amateur Astronomer, Dutch-Canadian, loves ADHD, living in the USA.
Years ago I wanted to make a huge circle with a triangle in it with twinkling lights as decoration for a dance, I was a part time DJ. After stringing the circle I couldn't figure out for the life of me how to string a perfect fit equilateral triangle in the center. The other day I finally came up with a solution, draw the triangle first! All these years I kept on thinking of a solution.
Couldn't you just use your radius to mark out the vertices of a hexagon on the circumference, and then connect three of those to make your triangle?
@@Deipnosophist_the_Gastronomer how? Basically all I had was some string, twinkle light wires and some tape.
In the same way that you have laid out your circle.
Choose a point on your circle to be the apex of your triangle.
Using the same length of string, mark, to each side of that point a new point on your circle.
From each of those new points, still using the string, make another point on the circle, farther around.
These last two marks and the apex form your triangle.
@@Deipnosophist_the_Gastronomer brilliant, you didn't explain to me why it would work though, tried first then figure it out. The radius of a circle is equal to the legs of an equilateral triangle with 2 vertices on the circle and the 3rd vertex at the center. The angle pi/3 is 1/6th of pi*2. This exercise made me wonder. Back when they were figuring out all of this geometry did the drawing of a perfect circle come much later in the discussion? Starting out it was just all angles and measurements right? When we learned it in school we had already seen perfect circles, we were used to seeing them, but back then they had never seen one. At some point they staked a string down in the center of some sand and drew a perfect circle around it and everyone said ahhhhhh, it's magic!
Love your channel. I'm EECS, so this not my expertise. I used to be on a UC wide committee that, when at UCSC, Joel Primack attended. We sat next to each other and he fascinated me with the study of dark matter. Permanently bitten by the bug.
Wouldn't it be funny if the Euclid Space Telescope determines that space is non-Euclidean?
👏
We already know it isn’t though? Like, that’s what general relativity describes: the ways in which spacetime doesn’t just have the flat metric of diagonal(-1,1,1,1)
Edit: by which I mean, isn’t Euclidean, I.e. is non-Euclidean.
Bazinga
😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂
It would be awesome 🤣🤣
14:35 "Got it." This needs to be a sound byte. I like this too much.
3:42 -- Here's to another Opportunity-style extension. The little guy served us for 15 glorious years after its planned initial 90 day mission. What a trooper.
Excellent video as always Dr Becky. Love that you show your outtakes and failures at the end as well, so that we know that even an intelligent scientists can make some minor mistakes.
The outtakes are the best HUMAN part of her videos. This is why she is so liked by millions and millions everywhere
An Intelligent scientists? Spot the irony.
@@dtutssel "An Intelligent scientists? Spot the irony." - Well I have interacted with James Tour, so no.
Thanks for another wonderful explainer. You really do a fine job at this. BTW, I must have come across the information before, but it was interesting to see how the plane of the solar system relates to the plane of our galaxy. And finally, there was something quite special about seeing the hard working Beckyhands (that's a word now) behind the graphic of Euclid.
Don’t want to make anybody jealous or anything but Dr B totally winked at me at 09:02.
Thank you for everything you do.
Can't wait for the images and analysis from Euclid!!!!
That is exciting, but heartbreaking to hear we will have to wait a long time until they publish the first batch of data... So, no discoveries will come from this for years.
This is cool 😎! This should be SpaceX’s first space telescope launch too. Wow. Lotsa love to all ❤❤❤
I'm really exited to understand more about dark matter! I've never understood why we see its effects on the scale of galaxies, but not solar systems. It it perhaps that we got lucky (or unlucky?) and our solar system has almost no dark matter and we might one day find a solar system with a star full of dark matter, or is that dark matter only coalesces on the scale of galaxies but not solar systems for some reason?
It's the latter - gravity tells matter how to move but the electromagnetic force tells it how to collide. Dark matter only sees the former so it doesn't clump in small scales like individual solar systems, it scoots out like it scooted in. It's easy to forget that essentially all the baryonic mass in a few cubic lightyears around us is in the Sun. Dark matter on the other hand is distributed much more evenly in that same volume so that the entire mass of it contained within 1 AU of us is something ridiculously small like the equivalent of a basketball or something like that, far too small to affect anything measurably.
3:08 you said "so you only observe the faintest of things" I think you meant the brightest of things.
You might even find areas where space travel may be easier due to certain types of cosmic drift.
Just another thing to keep an eye on.
Truely, thank you for everything you do.
Cool & interesting channel 🌙 🚀 💫
Cheers from San Diego California 🇺🇸
I love Sandy Eggo ...
Eggos arent that good even without the sand.
Exciting stuff. Lets hope the launch goes to plan.
Looking forward to hearing about what Euclid has found about dark energy
It's gonna be interesting to see more info to help resolve the Crisis in Cosmology!
Fascinating stuff indeed! Thanks, dr. Becky! 😊
Stay safe there with your family! 🖖😊
I'm looking forward to seeing the postage stamp images actually printed on postage stamps. How cool that would be? I love listening to you explain the science. ❤
I first heard about this mission back in 2016 as it was featured on an episode of BBCs Horizon. The episode was called The Mystery of Dark Energy and it had some of the British scientists of the mission talking about it.
Thank you for the info...Wow!!! I love the energy that you have delivering this content or is it that I love this content so much that I find it hard to ignore your love for this content.
that babbel segue was too smooth!
As I recall, there were no major problems during JWST's launch. I hope they're being just as careful with Euclid if it is going to L2. Would be a shame if something minor ruined the mission.
From your mouth to God’s ears ;) The Chief Scientist of JWST knew they’d all done everything they could and was rightfully confident, but I couldn’t watch the launch….
ESA's reliability record for deep space craft has been incredible. Rosetta was launched in 2004, spent 10 years surveying asteroids 21 Lutetia and 2867 Šteins, along with two Earth flybys. In 2014 Rosetta rendezvoused with Comet 67P/Churyumov/Gerasimenko, becoming the first spacecraft to orbit an object that small and discovering the comet resembled a rubber ducky to the absolute astonishment of the world. Rosetta spent two years orbiting the comet, sending its landing probe Philae to the surface and finally landed on the surface of the comet to end the mission in 2016.
To date the most astounding mission in human history has been the ESA probe Gaia, which was the very first probe to orbit the Earth-Sun L2 LaGrange point, beating JWST by several years, arriving on station and fully cleared to begin scientific observations in July, 2014. Since then, Gaia has observed more than 1.8 BILLION individual stars, mostly in the Milky Way galaxy. It observes each star over a period of years, measuring with ever increasing accuracy through the years, each star's spectral type, magnitude, variability curve, 3 dimensional motion (both proper motion across our field of view and radial velocity toward or away from the observer). We think Tycho Brahe was a hero of astronomy. Gaia makes him look like an amateur. Thanks to Gaia, we now have an animated map of 1.7 or so billion Milky Way stars that we can animate to run time forward and backward to determine the history of our galaxy. One of the discoveries is that several billion years ago, the Milky Way absorbed another galaxy, called Gaia Enceladus, and incorporated its stars, which still differ both in motion and chemistry from native Milky Way stars. Our neighborhood is uncharacteristically dense in Gaia Enceladus stars, although the Sun itself is a native Milky Way star. We now have actual case study on what happens when galaxies collide! Gaia is still going, having released Gaia Data Release 3 in 2022. You can download and plot the Gaia database using the free astronomy program Cartes du Ciel (Skycharts), my absolute favorite astronomy program.
So ESA has beat NASA to all these milestones with demonstrated great reliability. I have no doubts that Euclid won't ruin their record. We unfortunately don't talk much about ESA in the US, but they are very much equal to JPL and NASA in the US.
@@RockinRobbins13 The thing is this is not a ESA rocket and many early SpaceX missions did not deliver satellites to their contract orbits. The satellites had to use their own fuel to get to orbit and thus shortening their mission life times. SpaceX has not delivered many satellites to these distant orbits Luke L2.
@@mrbaab5932 Wrong on two points. First of all, SpaceX is the first rocket company to use a single rocket type, the Falcon 9, to send missions both one million miles toward the Sun to the L1 LaGrange point, that's the DSCVR mission, and to 1 million miles in the anti-sun direction to the L2 LaGrange with the Euclid mission. In addition, Falcon 9 has delivered at least three probes to the Moon. Kick stages don't shorten satellite missions either. They aren't part of the satellite.
Secondly, ESA is not a rocket company. They are like JPL, developing probes. Most of the time they like to use Ariane rockets because France is a member of the EU, but they have also used Russian rockets, like they did for Gaia.
@@RockinRobbins13yeah and well... it's kinda difficult to get your hands on an intact Russian rocket these days,
That was a really good explanation. I understand now why I keep getting updates on Euclid. Odd thing: I'm looking at the weblike structures of matter and think of the structure of aerogel. It's odd how you get similar structures at different sizes through different mechanisms.
Not so odd… universal information tends to conserve itself; it all has the same underlying structure, and therefore tends to manifest in similar but different “routes up from ground”.
it is conceptually a similar mechanism - gravity tries to pull all the matter together in the universe, surface tension tries to pull all the liquid together in bubbles and aerojels
How come a photon does not realise it is getting stretched as it travels with the speed of light?
@@reasonerenlightened2456 it does "realise" in as much as its energy decreases as its wavelength is increased - that is why the cosmic microwave background (originally emitted as roughly the same optical light as the surface of our sun) has been so far red-shifted it has left infrafred and become microwave.
Which only reaffirms my belief that yes, there IS a unified field theory. It's just that our understanding of the universe is actually quite limited. We have come a LONG way in a short time, but for every fact we think we know, there are (obviously) quadrillions of things we don't. For all of our advances, the truth is that we are still very much in the "baby steps" phases of physics and cosmology. The million dollar question is will we advance enough to take that leap or wipe ourselves from existence first? Either way, the universe will still carry on because we are less than a dust speck on the cosmological scale
I just had a stroke of genius, now I know what dark matter and dark energy is. Oh my gosh, it's so beautiful! Why has nobody thought about that before?
A RUclips video suggested that Dark Matter might be made of Bose-Einstein Condenscates formed when the temperature in places got low enough to form them. If so, they would be an interesting material to find.
Excellent Video Dr Becky !!! Do you know if the data would be public “available” like other missions we might find at Mikulski Nasa Archive site, or the data will be restricted only for “special” people ?
Yep, the timeline dates I mentioned are for public release of the data
Euclid❤
End of primary mission: when? 2) How could it be used for a secondary mission? 3) 3rd mission… what novel utility would be fun/interesting if you could use it?
Resolution: What would Euclid’s ultra-deep look like? Understanding this is a survey (and considering the orbit of earth around the sun), what is the longest exposure time possible for a single target pixel/galaxy look like (how would its resolution be different than the Hubble, JWST, overlap/composite) (yes, ignore the motion of the galaxies outside the target pixels)?
Artifacts: Single pass to capture 1/3rd of the sky? Multiple passes would phase out the image artifacts.
10:30 Any physics you can demonstrate with a wine glass is good physics! So say I.
Me thinking of a concave earth theory
I noticed she finished the wine before the demo, very sensible!
@@Roozyj Earth is flat. Doesn't hold wine. Sorry. 🤔
@@ericneff9908 You can prove flat earth by putting water on the bottom side of a wine glass. You'll see it only stays on the flat bit and not on the bulb.
@@Roozyj Water stays on the bulb of a space wine glass. The Earth is in space.
fun fact: mass production reduces cost per unit. a basic truth in manufacturing can be applied to astronomy to dramatically increase our knowledge of the universe. whatever the cost to develop a space telescope can bedeviled by the number of telescopes made to the point where the fraction of the development cost applied to any given telescope becomes less than the material cost of the given telescope. this can be used to produce enough satellites to see not only the whole sky simultaneously but to see the whole sky from viewpoints we normally could not see at the same time. with enough space telescopes in multiple orbits around the solar system we could see any object on a collision course with earth even if it were coming from a direction that we normally would not be able to see such as from behind the Sun.
Brilliant presentation. Thank you.
Hopefully Ill have a Dr Becky video explaining the findings in 2.5 years
Was listening to your book. Absolutely love it btw! A question, if you flip it around and an alien was looking through the James Webb Telescope and observing our galaxy. What would it be able to pick up from say Andromeda galaxy?
It's great that we are putting more telescopes into space! Wish we had done this earlier!
Considering the massive amount of data that Euclid will collect, it will likely be advantageous for astronomers to utilize machine learning algorithms to help them comb though and analyze the data. Hopefully that will mean that most of the serendipitous discoveries don't go undiscovered for a very long time as you suggest they will.
Thank you a lot for this video! Euclid seems to be very interesting in the future.
Just one question that I have in my mind for longer now: When you are talking about spectrums you are always saying that the light is split by a prism. Is that really the way they do it in telescopes? Or do they use rather diffraction gratings? At least in my physics studies I barely work with prisms but much more with diffraction gratings...
I enjoyed how, in the timeline segmentation for the video player, you put the division between two of the segments, in the middle of the Babbel ad xD
You got me that time!
But next time, I will know your tricks muahahaha
@DrBecky >>> Great video.
that Euclid is so euro. tucked bbs mesh looks mint.
Just finished A Brief History of Black Holes, lots of fun and very interesting, well worth buying from Auidable. :)
Thanks alote for impotant information and best regards from Sweden
Space is hard.
I'm starting to think that Dr. Becky's favourite thing in the world is that wine glass B-roll footage.
Those were great visualizations at around 11 min
! Hola Doctora ! Saludos desde Costa Rica ! Pura Vida ! ❤
@DrBecky >>> Regarding the _Bloopers:_
*AIR CONDITIONING.* It works. Trust me, I was born and raised in Florida, USA...😉
This is Awesome, thx for the vid.
Dr. Vecki in Francais will expand your audience horizon big time, Bien sur...bon chance :) :)
Cant wait for the Keter launch
Thank you again. I've seen the whole video.
Another amazing telescope. Happy to see you are not holding your mic.
Medam Very good very nice information thank you very much
So good, thanks.
Thank you so much for this video. I am sure it takes a lot of work to create such informative videos. Every semester I recommend your channel to my students in my astrophysics course (college level) because everything is well made and relevant. But I am wondering why there are sponsors for the videos. It surprised me that a Oxford professor chose to have sponsors for the outreach they make. I am sure it is a well thought decision, but it would be appreciated if you could explain a little bit if possible.
You are So happy with your career. I am glad. I wanted to pursue several types of subjects however my Math is really bad. Oh well. Such is life.
Keep up the good work. I unfortunately won't get to see what you will. You are young. Enjoy you're life at it's fullest.
Trust me time Screams by so fast.
Some of that 3D picture would make a fabulous stereoscopic image!
This is exciting, as is the upcoming Nancy Roman Grace Space Telescope, which I think is a wide field survey telescope.
Dr. Becky's script: "It has..." [finger thrust] "...one job!"
If you're using a relatively recent DSLR or mirrorless DSLR the sensor overheat message at 29 minutes or so of recording is so the company can avoid the tax on selling video cameras vs selling still cameras (that happen to shoot video). Also, if you're using a Canon checkout Magic Lantern, its an alternate firmware that you just drop on the SD card and it unlocks A ABSOLUTE TON of features on Canon cameras, like continuous recording for longer than 30 min (which is the tax cut off point, longer than that and its a video camera. Although, it still is possible for the sensor to overheat, so ya know....keep that in mind). Like, so many features.....its insane. Many only available on the higher end models, some not available on Canons at all. Its mostly safe, Ive used it in my D1200 for a while, never had a problem, but then again I dont do much crazy stuff with it. I highly recommend it to every Canon owner I meet.
Many thanks again
Dr. Becky when I see examples of this kind of survey telescope I wonder how they adjust for the fact that most of they objects are moving as the telescope scans the sky. How do they compensate for the positions of objects having changed by the time it gets a complete survey?
Thanks for making this video.
This is exciting. What kind of supercomputer power is this going to take? It seems the data will be tremendous in volume.
Hi there Dr Becky. It's great to see this new telescope launch and it's missions objectives are exciting. I, however, don't believe in the existence of dark matter. I would put all my money on it if I were to bet. About 30 years ago a young man went to university and was asked a question. "Do you believe in the big bang?" I'd never considered an alternative until that moment. I went to the library as there was no internet back then. I really wanted to understand the theory before I challanged it. I then looked for flaws in the theory like why galaxies don't fly apart and why space is expanding seemingly faster and faster. I didn't know about the theories of dark matter and energy until I read about it. I then came up with a New theory of the universe which explained these phenom but the lectures weren't interested. You could not imagine how I felt. Why ask the question and not have the patience to at least hear my theory. But, alas, it gets better. Later I was actually asked to leave uni. Yes I was thrown out. Admittedly my pass rate was not the best 50/50. The head lecturer a Dr of Physics told me I was very bright but the University has a reputation or standard to uphold. Some other lecturers were not too happy with what happened and assured me it will never happen again. They looked up my IQ test from my entry exam and a huge argument was had between them but the majority voted against me. It was a disastrous 2 yrs for me having a car accident and the rest. So I say to you here that space itself, without the existence of dark matter, bends the light as it travels past matter or through galaxies. I know this sounds strange but space is not uniform. This is why the stars in galaxies spin faster the futher they are from the center. Space conducts matter. The density of space makes it easier for matter to travel through it. As you get closer to the galactic center space becomes less dense until you reach the tare in the fabric of space known as black holes. Hopefully Physicists will realise this when this telescope finds nothing. I mean dark matter does not exsist but dark energy does exsist as I'm sure alot of other discoveries will be made from the data. Anyway, sometimes you just have to wait until they catch up. Cheers from downunder.
Complete gibberish. Surprised you even got into university!
Your voice can bteak glass and curtain of my ears..🥶
8:00 And as the Universe is flat, it is an Euclidean space.
Have you had any observation time on the JWST yet, Dr. Becky, as I'd be interested to hear what you wanted to observe?
brilliant show
With that lovely UK voice saying “…something completely different…” my brain immediately goes to the ridiculous…dang it! Monty Python strikes again!
Cheers from the Pacific West Coast of Canada.
Didn't that used to be one of our colonies? :)
Really cool!
That's so super cool
Dear Dr Becky, as ever a fascinating vid!
Please forgive this digression but would it be possible to teach us how to find Aquila in the night sky in the coming summer months? Summer in the UK, that is. Thanks!
0:25 --- 150 million km from Earth? this must be wrong. I think you meant 1.5 million, but somehow thought about the Sun's distance.
not too related to the video, however, I think a video talking about the different mass gaps in BHs would be fairly interesting. Such as the BH NS formation mass gap and the pair instability mass gap. But in regards of Euclid I am very excited to see what kind science we find!
You lost me at 10 billion light years away. As soon as I heard that I started trying to imagine what that even means as a distance. I don’t think anyone can actually fathom that incredible distance.
How about a video on the planned space telescopes, going past the Nancy Grace Roman?
IloveyouDr.Becky ❤
How do the scientists account for gravitational lensing in the data received by Euclid? Sometimes it's obvious in an image, but otherwise how do we know if an object has been lensed? How do we know it's true position and distance?
I heard that they recognize an object is the same (eg when lensing produces two images of it) because each galaxy has a very distinctive spectrum of light, like a fingerprint. For position and distance there’s not a definitive method. I think they use redshift for galaxies, that is the more the light is stretched towards the infrared the more the galaxy is far away. It’s an estimate: I understand astrophysicists can’t be totally sure of the measurement.
If you want more details you’ll have to google or search RUclips. I am pretty sure that there’s videos about these topics. Cheers.
Plus think about what kind of tools will be available in December 2025, when the first data will come out. We might be able to parse the data really really effectively!
Can't wait for the 29 June announcements.
The discovery of dark matter just proves what I've believed my whole life... We live in a peanutbutter universe. Now we just need to figure out if it's creamy or crunchy. My bet is crunchy.
It's up and running. Is there an update?
A small mistake. With the surrounding context, I think most will still know what you mean; but you misspeak at 3:09 by saying a broad survey "will only detect the faintest of things." With lessening exposure, the bright objects are detected first.