Hey! You’re not imagining things: we did originally post a Rocks Box episode today. It had some audio problems that we're working on and we'll hopefully have that up for you tomorrow!
I thought I saw a rock box video! Although I had a feeling that it had some issue with it, but I’m grateful that y’all still posted a substitute video anyways! Thanks!!
@@simonehudspeth861 Probably a fragment of Encke or something related. (It has been hypothesized that it was a chain of fragments from Encke that exploded over the ice sheet, flash boiling hundreds of millions of cubic meters of the glacial sheet and causing a catastrophic world wide rise in sea level that would have been seen by everyone, lending to such myth and legend as Gilgamesh and Noah et. al. See: Younger Dryas)
Got to see Halley’s comet when I was young, hoping I get the chance to see it a second time but I doubt it. Although I just watched “Don’t look up” & comets seem a little scarier now
I hope that Pluto's tail wags when somebody says nice things to it like maybe "Good Planet" and scratches it behind its ears. Then of course all of its moons would gather around an need their "Good little moons". Somewhat the same (as dog owners know) as the truth of the old beatles lyric ""And in the end The love you take Is equal to the love you make"
1:24 There's something about consolidated and sped up space object footage that makes me dizzy 😵💫 Same thing with footage from that asteroid we landed a lander on and you can see the "sky" of stars spinning around it. I love it so much tho!
Young stars can produce tails (look up proplyd on wikipedia) and pulsars sometimes have tails in x-rays. I guess galaxies that are affected by ram pressure also can have tails. But because they are called jellyfish galaxies you could call them “tentacles“ and not tails.
03:20 Maybe for the same reason summers here on Earth get hottest in july (northern hemisphere) and january (southern hemisphere), even though the sun is highest in the sky around 21 june (NH) and 21 december (SH).
The reason Mercury's tail is brightest about 16 days after perihelion is that it depends on Mercury's radial velocity (i.e. its speed towards or away from the Sun). There are absorption lines at the sodium wavelengths in the Sun's spectrum, and at perihelion the wavelengths where the sodium would absorb are sitting exactly on the absorption lines so there's not much light to excite the sodium. As Mercury moves away from the Sun after perihelion, the Sun's spectrum gets Doppler-shifted so the sodium around Mercury can get excited. That excitation is a maximum at 16 days.
You guys should try to sell merch. along the lines of a play on a line from Jaws, "we're going to need a bigger X." Like, sell a onesie that says "we're gonna need a bigger x-ray telescope."
Not need to go to far to find comet-like planet. Even when it's faint, solar wind strip away molecules from our planet upper atmosphere, making an impressive tail, long enough to reach the moon and beyond. One hypothesis how the moon got water and why's is located on the poles.
Is a lunar sodium trail why a full/new moon has a yellow tinge to it? I think it’s the new moon that has the yellow tinge. I can’t remember at the moment.
Regarding Mercury's sodium tail peaking later than it's nadir, I'd say it's likely that the source of the tail is deep under the surface, meaning that the peak energy of it's closest approach needs time to "soak" down to the depths of the sodium sources, based on the rate of thermal conduction of the medium around and above it... basic thermodynamics...
When gas giants are relatively low mass they have large volumes and lower-end densities... but as they get more massive their gravitational pull increases so much that they become smaller as their density vastly increases. In fact, by the time they are as massive as Jupiter they don't get appreciably larger even though they are pulling in more material, they just get more massive... it is for this reason that Brown Dwarfs, even though they are tens to a hundred times more massive than Jupiter, are roughly the same size as Jupiter (just a bit bigger). For WASP69b there is an added factor... its proximity to it's hot parent star (it orbits in less than 4 days!) causes so much heating the planet's atmosphere is very 'puffed-up'... move it out to a distance where it would orbit in months to years and as it cooled it would shrink in volume and be appreciably less than Jupiter.
Why does a comet have a tail? If source of tail is moving through.....nothing.....the cloud should get bigger and bigger in the shape of a ball/sphere. It appears the source is moving through something because the ejections are held in place as comet moves away. Why does the tail fade? Again....more evidence source is moving through something.
I'm sorry, but the sound of your videos is horrible.. Please, lower the amplification, don't make your sound like an advertising. I know, not every body ear that, espiacially depending on device you are using. But please, don't boost the sound that much, it is far too much. Except that, I love the content you produce. So thank you !
There is a web site where you can submit name suggestions for exoplanets. Don't count on seeing them actually pick your submission any time soon though. They aren't in much hurry to name planets besides the few which are candidates for extraterrestrial life.
I'm not a fan of calling comets and asteroids "left overs." Where this becomes more than a point about terminology is how survivorship bias makes them less than perfectly representative of the protoplanetary disk, and in ways that we couldn't anticipate. Something about them was different. Otherwise, they would have already been part of earth, or one of the other planets. They might be representative, but that requires observation, and since no one was around at the time ... there in lies the problem. I'm sure some proportion of asteroids really are representative, but others might not be.
Even if we survive and thrive into the future, *we* won't exist in a billion years. Whatever evolves from us will exist, but they will be very different from any human today. Everything inevitably stops existing, even the universe.
@@theflyingmoustachioVery true, though when people talk about us not being around in the future, I don't think they're talking about _Homo sapiens_ specifically.
I prefer if Astro Alexandra came on to talk about this. She's talked about it before and given her really cool collaboration, it'd be great to see her come on long term.
There's a whole psychological story behind how normal, caring people become monsters. It would be a timely video given the state of the world. It's easier than you would think to get ethic cleansing started, scary easy.
You guys forgot the galactic version of tails; Streamers. Not to mention that potential tail of stars from a rogue supermassive blackhole slamming into intergalactic gas.
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
Hey! You’re not imagining things: we did originally post a Rocks Box episode today. It had some audio problems that we're working on and we'll hopefully have that up for you tomorrow!
wow! will you do a science episode on how really big bomds work? the 2klb ones are the coolest TBH. oh and DFTBA!
I thought I saw a rock box video! Although I had a feeling that it had some issue with it, but I’m grateful that y’all still posted a substitute video anyways! Thanks!!
Still though .. I am imagining things.
I got to watch both. I didn't think the audio was that bad but i read the comments on it. Thanks for the wonderful content.
Oh I just thought we got two videos in one day! But I'm glad you're fixing the audio
That thumbnail was just perfect, scishow team sense of humor is awesome ❤
I was just watching fur shed from our dog's wagging tail.
Puurfect
everyone like the oc as an indicator of how much of a dOg pErson you are.
Yes very
Hope they don’t change it 😮😮😢😢😂😂😅😅😊😊
I have a cat named Comet. He has a tail lol
If he ever loses his tail you'll have to change his name😮
@@7-tenasteroid
I'm disappointed. The thumbnail made me believe we were going to talk about a cosmic good boi.
It took me half the video to realize that no, they were not going to talk about fluffy tails on fuzzy animals. I was very, very sad.
Wow, the planet WASP-69b has a tail that's 580,000 km long.
But the real question, is there a stinger at the end?
I would think a WASP would be weilding a Bible or some Tax Codes
@@simonehudspeth861 Probably a fragment of Encke or something related. (It has been hypothesized that it was a chain of fragments from Encke that exploded over the ice sheet, flash boiling hundreds of millions of cubic meters of the glacial sheet and causing a catastrophic world wide rise in sea level that would have been seen by everyone, lending to such myth and legend as Gilgamesh and Noah et. al. See: Younger Dryas)
🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝
it's so wild that a system of 2 dead stars orbiting each other can move so fast they create a bow shock.
Ikr!!?!??!! It’s space! And massive gravitational bodies! How does that even work???!
sometimes I wonder how hades feels when he sees us human naming our dogs after him, and not his pup?
He's probably still pissed that Hercules got his own TV show and he didn't.
@@ZrJiri not enough stories, but the show could be about underworld mishaps and then Hades solving those issues
Got to see Halley’s comet when I was young, hoping I get the chance to see it a second time but I doubt it. Although I just watched “Don’t look up” & comets seem a little scarier now
the line about hoping that aliens looking our way see something spectacular when our sun blows up made me strangely emotional
1:42 🎶too robust, too robust for DUST🎶
I hope that Pluto's tail wags when somebody says nice things to it like maybe "Good Planet" and scratches it behind its ears. Then of course all of its moons would gather around an need their "Good little moons". Somewhat the same (as dog owners know) as the truth of the old beatles lyric
""And in the end
The love you take
Is equal to the love you make"
Pluto isn't named after the Disney character, though. You'd think SciShow would know better than to say something like that.
1:24 There's something about consolidated and sped up space object footage that makes me dizzy 😵💫 Same thing with footage from that asteroid we landed a lander on and you can see the "sky" of stars spinning around it. I love it so much tho!
Young stars can produce tails (look up proplyd on wikipedia) and pulsars sometimes have tails in x-rays.
I guess galaxies that are affected by ram pressure also can have tails. But because they are called jellyfish galaxies you could call them “tentacles“ and not tails.
WAY TOO ROBUST TO BE MADE OF JUST DUST!
(My new motto, btw.)
Mayera Yeee, Mayera Ahhh, Mayera Ohhh, Mayera Ah Ah! ..... Stellar Nma Numa.
9:41 or in other words, 1/8th a average CVS receipt.
03:20 Maybe for the same reason summers here on Earth get hottest in july (northern hemisphere) and january (southern hemisphere), even though the sun is highest in the sky around 21 june (NH) and 21 december (SH).
Adorable thumbnail!
The reason Mercury's tail is brightest about 16 days after perihelion is that it depends on Mercury's radial velocity (i.e. its speed towards or away from the Sun). There are absorption lines at the sodium wavelengths in the Sun's spectrum, and at perihelion the wavelengths where the sodium would absorb are sitting exactly on the absorption lines so there's not much light to excite the sodium. As Mercury moves away from the Sun after perihelion, the Sun's spectrum gets Doppler-shifted so the sodium around Mercury can get excited. That excitation is a maximum at 16 days.
10/10 Thumbnail
Stefans back! Would be cool to have him maybe as a guest on Scishow tangents some day again
❤ love that cover pic!
Hot Neptunes would be a great name for a band.
It would also have gotten me to eat my veggies as a kid if they had been called that : )
hot Poseidon
@@meetaverma8372that sounds more like a young adult tv fantasy drama character 😂
@@ZrJiri fair
In love with the thumbnail.. ❤😊
You guys should try to sell merch. along the lines of a play on a line from Jaws, "we're going to need a bigger X." Like, sell a onesie that says "we're gonna need a bigger x-ray telescope."
Pluto deniers: Pluto isn't a planet hurr hurr hurr.
Me: you know, dwarf _planets_ are still *planets* right...?
that was super cool about Mira!
If I had a nickel for every time they saw an x-ray from Pluto's tail, I'd have two nickels, which isn't a lot, but it's weird that it happened twice.
Not need to go to far to find comet-like planet. Even when it's faint, solar wind strip away molecules from our planet upper atmosphere, making an impressive tail, long enough to reach the moon and beyond.
One hypothesis how the moon got water and why's is located on the poles.
"The answer, my friend, is blowing in solar wind..."
Is SciShow-Space really dead?
So does sodium vapour glow in space like streetlights?
Ah you answered my question.
More information in the comets.
A tale of tails.
could Mercury's be some sort of condensation? being why it appears when it does
wasp-69b, nice.
Mercury's tail takes a much longer time than average because it has to work from much deeper into the planet maybe?
Is a lunar sodium trail why a full/new moon has a yellow tinge to it? I think it’s the new moon that has the yellow tinge. I can’t remember at the moment.
What came first? Pluto the planet being discovered or pluto the dog?
Pluto the Planet.
February 18th, 1930
Pluto the Dog debuted September 5, 1930, and Didn't recieve The name Pluto until April of 1931.
So, does that mean the moon has a lot of Sodium?
The light parts are mostly made of feldspar, which comes in potassium and sodium varieties. Very similar to our own crust.
I don't know for sure .. but I think he's standing in front of a green screen.
Regarding Mercury's sodium tail peaking later than it's nadir, I'd say it's likely that the source of the tail is deep under the surface, meaning that the peak energy of it's closest approach needs time to "soak" down to the depths of the sodium sources, based on the rate of thermal conduction of the medium around and above it... basic thermodynamics...
I am going to try and tell Phaethon what to do
Butt scratches?!?! 🐶
phaethon ?? Come on people clearly that asteroid should have been named Icarus opportunity missed imo
I feel like you could’ve worked in a tale as old as time somewhere in there
❤❤❤❤❤❤❤❤❤❤❤❤❤❤
How can WASP69b be larger than Jupiter, but only 90 earth masses?
When gas giants are relatively low mass they have large volumes and lower-end densities... but as they get more massive their gravitational pull increases so much that they become smaller as their density vastly increases. In fact, by the time they are as massive as Jupiter they don't get appreciably larger even though they are pulling in more material, they just get more massive... it is for this reason that Brown Dwarfs, even though they are tens to a hundred times more massive than Jupiter, are roughly the same size as Jupiter (just a bit bigger).
For WASP69b there is an added factor... its proximity to it's hot parent star (it orbits in less than 4 days!) causes so much heating the planet's atmosphere is very 'puffed-up'... move it out to a distance where it would orbit in months to years and as it cooled it would shrink in volume and be appreciably less than Jupiter.
doesn't Stefan look younger?
I think it's spelled Mira... chapters are wrong...
ZZZ REFERENCE SPOTTED… 4 months later pfft
9 seconds ago? Wow youtube delivered early
Hi Stefan, no offense, but "Chandra" isn't French, and it isn't pronounced as "Shandra" anymore than "Chin" is pronounced as "Shin."
Thanks. #SaveChandra
Why does a comet have a tail? If source of tail is moving through.....nothing.....the cloud should get bigger and bigger in the shape of a ball/sphere. It appears the source is moving through something because the ejections are held in place as comet moves away. Why does the tail fade? Again....more evidence source is moving through something.
Whoa I'm so early :D
it's okay to use a pronunciation key
I'm sorry, but the sound of your videos is horrible.. Please, lower the amplification, don't make your sound like an advertising.
I know, not every body ear that, espiacially depending on device you are using. But please, don't boost the sound that much, it is far too much.
Except that, I love the content you produce. So thank you !
Piano!
When are we going to get a cool astrophysicist who will name an exoplanet Planet Vegeta?
There is a web site where you can submit name suggestions for exoplanets. Don't count on seeing them actually pick your submission any time soon though. They aren't in much hurry to name planets besides the few which are candidates for extraterrestrial life.
@sophiejones3554 I'll have to check it out anyways then lol I'm just tired of seeing things like JMX-102934+2G 😂
Hmm... no comet
I'm not a fan of calling comets and asteroids "left overs." Where this becomes more than a point about terminology is how survivorship bias makes them less than perfectly representative of the protoplanetary disk, and in ways that we couldn't anticipate. Something about them was different. Otherwise, they would have already been part of earth, or one of the other planets. They might be representative, but that requires observation, and since no one was around at the time ... there in lies the problem. I'm sure some proportion of asteroids really are representative, but others might not be.
Is this video’s audio ai generated or it had some kind of problem during rendering?
The rocks video had bad audio too. Just a wrong mic situation. They got mics on the cam and the actual mic . Main probably wasn't on
I like looking at tail.
I wish I was in a “coma” lol ;)
Click bait! I was promised video of tails, good sir, TAILS!
Hi Stefan!
I wish people were more willing to consider a future where we _were_ around a billion years from now instead of assuming we're all doomed.
Even if we survive and thrive into the future, *we* won't exist in a billion years. Whatever evolves from us will exist, but they will be very different from any human today.
Everything inevitably stops existing, even the universe.
@@theflyingmoustachioVery true, though when people talk about us not being around in the future, I don't think they're talking about _Homo sapiens_ specifically.
I prefer if Astro Alexandra came on to talk about this. She's talked about it before and given her really cool collaboration, it'd be great to see her come on long term.
Transcomet
Can we have a video on the science of ethnic cleansing?
It would be relevant because of the you know what over in the the middle east sci show
There's a whole psychological story behind how normal, caring people become monsters. It would be a timely video given the state of the world. It's easier than you would think to get ethic cleansing started, scary easy.
@@nola281 yeah its crazy how people with a giant platform can be silent during such times
There's no science to justify such atrocity if that was what you were looking for, "Real Mensch".
You guys forgot the galactic version of tails; Streamers. Not to mention that potential tail of stars from a rogue supermassive blackhole slamming into intergalactic gas.
A tale of tails.