How Do We Know What the Milky Way Really Looks Like?
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- Опубликовано: 26 авг 2024
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We have all seen images of the Milky way that look like there are taken at great distances from the outside but how do we know that is correct. The Voyager spacecraft have been travelling for 44 years but have only gone 0.002 light years from Earth and will take another 40,000 years to reach our nearest neighbouring star.
So in this video we look at how we know that the Milky way looks like on the outside from the inside.
Written, researched and presented by Paul Shillito
Images and footage : NASA, Sam Sciluna, Yuri Beletsky, Mehmet Ergün, Maksymilian Novak-Zemplinski
And as always a big thank you also goes out to all our Patreons :-)
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Music from the RUclips library
Drifting at 432Hz by Unicorn Heads
![Journey to the Andromeda Galaxy [4K]](/img/1.gif)
Dear Paul,
i first found you in 2019. Since then i followed all of your Videos and wachted nearly all which came before.
Thank you for your and your Teams hard work, to bring us this top notch content.
These videos are treasures for me!
I found him in 2020 and I have binged watch all of his vids
As a person with a healthy dose of curiosity 🙄😜😂🤣😁🤨 I accidentally discovered this channel and I haven't been disappointed since.
Galaxies are massive beyond our understanding. If Andromeda were brighter, it'd appear 6 times larger than the moon despite being 2.5 million light years away. The Milky Way is 105,000 light years wide... to send a radio signal from one side to another would take longer than our species has existed. It's really mind blowing and humbling.
well if you wait long enough andromeda will collide with our galaxy....someday
Last I looked into it, Andromeda (if you could see the whole disc) would be about half the size of a full moon, or 1/4 of a degree.
@@TheEvilmooseofdoom nope, 3 degrees of an arc. The moon 0.5
@@TheEvilmooseofdoom RUclips won't let me post a link, but Phil Plait has an article on it. You'll find
Archaic homo sapiens dafe from around 300,000 years ago and modern homo sapiens 150,000.
Theoretically speaking, it would've been possible.
So much love for this channel
From anti gravity, to military and nature, always being perfect ❤️
True! He's like Smarter Every Day, Physics Girl, and Matsimus all in one package!
I'm an astrophile - This is the best made overview I've seen here on RUclips, an extremely well made explainer of our Galaxy.
One little note. Last year some more precise measurements of the distance of our Solar System from the Galactic core, have shown the distance to be little shorter than what we previously thought, at 26,000 light years.
Thank you Mr. Shiilito - it is always a pleasure when you publish a video...
Regards,
Anthony
Best content on RUclips, hands down. Keep up the good work!
Thank you for not adding overbearing music or other unnecessary stimulation
Man this comment is great lol. I can't stand trying to watch some kind of educational/theory video where there is an annoyingly distracting, usually looping, tune in the background.
So, I am not the only one in the world who detests unnecessary auditory stimulation, manufacturing artificial excitement. RUclips is awash in this.
Fun fact: In Sweden the milky way is called ”the winter street”
Interesting, in Georgian it's called "The Deer's Jump"
in Lithuania, the milky way is "the path of birds"
How about "cow juice parkway?"
I like it!
When I was little I thought it was cool that they named our galaxy after a candy bar.
If any producers are watching this, Paul deserves to be a host of PBS Nova, or other major productions. He's an excellent presenter, a thorough researcher, and possesses the unique combination of kindness, intelligence, and humility that inspires people to wonder.
I've always wondered how astronomers work how how far away a star is. So cool that its even possible to do so, let alone with such a simple method.
Parralax works with the nearest ones, but then we have to reply on the so-called Cepheid variables.
My favorite youtuber of all time. Thanks for posting again!
Jeez, I love anything to do with space. Thanks Paul, yet another excellent video to enjoy and love. I hope you’re getting healthier and all is good after your ill health.
Good to see you Paul hope alls well
I seem to recall you were poorly, hope you're doing great and everything's on the up and up! Keep up the good work 👍
This is something I have wondered about for the last 40 years of my life. Thank you for this Sir.
Great video as always!
One small mistake: at 3:22 in the title, Andromeda galaxy is M31, not M32.
Fascinating Paul, thank you. Hope you are well.
to believe there could ever be faster than light travel is to completely misunderstand what space-time is. it’s heartbreaking, but it’s never going to happen
I really don't see how you can conclusively claim that fast than light travel can never happen at this point. How could you possibly know that for sure? I'm sure its unlikely, but you just don't know. As a technological species we're so young. We don't know what discoveries future generations might make about the nature of the universe, or what technological leaps they might make. Assuming we manage not to destroy ourselves in the mean time.
@MF That’s exactly the way I used to think of the topic before I understood special relativity. There was actually a point at which I considered the confidence with which astrophysicists discuss the chemical composition of astral bodies to be *obnoxious*. I actually feel quite silly to recall that. David Kipping does an excellent job of explaining these topics in his videos on Cool Worlds channel. With great tact, he even shows how other scientists get things wrong out of sheer desperate optimism. Highly recommended
Its impossible to say what will and won't ever be possible
@TMW- you don’t understand.
Thanks Paul, Hope you are doing well.
I asked this exact question just a while back. Glad some one finally got around to explaining it. Thank you!
A big shout-out to square space! I wish you'd all realize we've heard these ads a zillion times.
Not me bud. I've heard these ads going on quadcintillion times. Top that, punk.
A new Curious Droid! Yes!
Thank you Paul!
3:50 Father ted always comes to mind whenever I hear some explaining this.
Small... Faraway....
Paul, you're looking and sounding absolutely fabulous and that's all we really care about.
If only we could get an Event Horizion episode with you.
Hope you're still well, Paul. Lucky to still have you around.
- Spock: V'Ger must evolve. Its knowledge has reached the limits of this universe and it must evolve. What it requires of its god, doctor, is the answer to its question, "Is there nothing more?".
- Dr. McCoy: What more is there than the universe, Spock?
- Decker: Other dimensions. Higher levels of being.
That "years from now" background was really cool. Thankyou sir, thankyou very much.
Good Video - but to add a little bit critizism ... it doesn't show the newest research on HOW our Galaxy really looks like. The Milkyway doesn't seem to be a common Spiral Galaxy - it's Spiral Arms are warped, on side points a bit more "up" and the other side a bit more "down". And it has some other oddities which most other Galaxies don't have (e.g. Ripples in it's arms). I mention this because i love our Milkyway, and it shows that we are living in a really unique place in the Universe.
Where are we? At the unfashionable end of the western spiral arm of the galaxy!
Enough leverty. I really enjoy your content. Interesting, consise, educational well delivered plus more
I absolutely love your videos Paul! Please keep them coming...your hard work is much appreciated!
Good topic, always happy to watch a curious droid vid.
Well done in picking up this fascinating subject. Even better: very well presented. Thank you!
While I don't understand much of it, I DO appreciate and enjoy it. Thank you!
True. My mind got into a Milky State by the end. 💫 🤩
Hey Paul, it's good to see you back my man! It's been a long time since the last one and I've been wondering lately if you would upload any more videos, glad to enjoy your content again!
Im so happy u made this video...been wondering the same thing.
New Curious Droid video... HAPPY DAYS!!!!!
Thank you for another incredible video
Great video Paul. Hope you are keeping well!
I really like your video's, just great and explanatory! Hope you are doing well.
Thanks Droid. Hope ya feel well.
Once we develop lighthugger spaceships we'll get those selfies!
THIS MAN IS ONE OF THE GREATEST VOICES FOR NARRATION AND TEACHING!!!!
I've been wondering this for years. I can't think of anyone better to answer it for me.
One of the cutest transitions to a sponsor segment, too! :)
I enjoy your frank, non-bombastic presentations. Thank you .
Great content as usual Paul. I hope you are doing well with everything going on.
Thank you, I enjoyed it. I remember a kid in high school asking the same question. Flummoxed the teacher. Thanks again!
Great work my man!!!
Not disappointed - as always ☺️
Great to see another video from you.
I was very worried when you took Ill and I’m very happy to know your back making great videos for us simpletons.
Thankyou
That last zoom-out shot was fantastic! I learnt so much from this video, thank you well dressed and well spoken RUclips man 🙂
Excellent video as always, I specially love your intros. Good to see you in good health 👍🏻
Greetings from Frankfurt
Fantastic. Absolutely fantastic video.
Just as before, another great vid and another great shirt. Looking forward to more of both.
Mesmerizing story about the universe, only rivaled by Pauls shirt!
You Sir are awesome! Thank you!
Forever is a considerable amount of time. Thank you, this was an interesting video.
Great to see you back.
I love your videos! From topic selection to writing to presentation, I thoroughly enjoy each one. Thank you for being you.
Another quality video. Thanks Paul
Hi Paul, its so good to see you. Probably we will never see each other but my healthy obsession with our universe and general knowledge is undoubtedly credited to you ♥️. My prayers for you and your work here. Incredible stuff! short and straight to the point
Much love, all the way from the Maldives 🇲🇻
Thank you Paul. Those discoveries also ignored the observation that stars, galaxies, and gas clouds are moving away from the earth in every direction. This makes the earth the center of the universe.
No, it makes Earth the center of the observable universe. Observers on any planet in the universe would see everything else moving away from them too.
Brilliant, the awe of the magnitude of the universe is never-ending
It’s always a pleasure to watch Paul doing his thing’ u are a really an inspiration
First time watcher and, honestly, not in an insulting way, but when I heard your voice I was not expecting you to look like you do.
I love your programs, much information on a level that even I understand, then I love your very nice shirts, looks much alike what I had on in the late sixties.
Always well researched. Thank you!
Your content is always exceptional with detailed explanations. I view every single production with anticipation and delight. Thank you.
Your vids haven’t been popping up in my feed for a while, (not since the update). I suddenly realised last night that I haven’t seen from you in a while and got a little worried/ sh@t myself! Good to see you Paul, hope you’re well! Xx
I friggin love this channel ❤️❤️❤️
Must-watch content, thank you for the work you do!?
Some people do not even know what a galaxy is let alone what our galaxy looks like from the outside. I remember years ago when I mentioned galaxies to my late father he asked me what a galaxy is. Nor did he know that a lunar eclipse can only happen at full moon. My sister didn't realize that the moon is often visible in the daytime. Acquaintances of mine often (mis)use the term "astrology" to mean astronomy. The general public is sadly uninformed on astronomical issues.
Dear Paul thank you
Congratulations, you were the first good youtuber i found of which I could use an NordVPN link of. Wanted to get Nprd anyways but also wanted to support a good channel. Keep up the good work!
Keep getting better my friend!
So happy to see you are still going strong. Especially considering your healthproblems. I hope that those are taken care of.
One of your best shirt! Love it. :D
After watching this I will consult the hitchkikers guide! Thank you, Paul for another fascinating video and hope you are well. Thank you for sharing.
Great video Paul, thank you!👏
Loved this! I'm so excited to see what we discover via James Webb.
It's fun to poke at the first Star Trek film which suggested "V'ger" had made it all the way out to a far distant somewhere AND BACK in just 300 years.
I wondered about this for years!
Happy birthday Paul 🎂
A subscriber from distant Michigan wishes you Cheers! for another excellent presentation.
Excellent and informative video!
Congratulations on passing the big 1m.
- You are here.
- Or are you? *Jake Chudnow - Moon Men playing in the background*
Great video, Paul...👍
By studying your awesome shirts 👍🏽
Before I watch…my guess would be that astronomers over the years have measured the red shift of various stars in our galaxy, working out whether they are moving away from us or moving towards us, and using triangulation to measure their distance, thus calculating the general shape of the Galaxy and our place in it!
That... actually sounds like a brilliant way to do it!
How do you measure the red shift of anything without a computer?
@@DasAntiNaziBroetchen By physically measuring how far the red part of the spectrum of the object in question, has shifted compared to a reference spectrum such as our Sun’s spectrum.
Hoping you are well. Thank you
Thank you for years of informative entertainment
"When we develop Faster-Than-Light travel" - now that's real optimism.
Ah man, awesome video! Very educational, super well explained and not dumb down ♥
I always wondered about this! Thanks again for another answer I needed to know!
Shirt game still strong as ever too!
I love it. Curious Droid with another masterful video. How can you not be a patron?
I've always read that we are much further away from the center than shown at the start of this video.
Super enjoyable factual video
Star Trek's star ship "Voyager" has already mapped our galaxy, with uncanny accuracy, in the 1980's, via their Astrometrics' lab.
Why are we still struggling with this?
I know right, why can't I just get beamed to the store and back? The technology has been around for atleast 40 years.
I don't want to be THAT guy but Voyager was in the 90's
Great video. I hope you're doing well.