Nebulae: Crash Course Astronomy #36

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Күн бұрын

Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust in space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predominantly red from hydrogen and green from oxygen, and when they reflect and scatter light it’s from massive hot stars, so they look blue. Stars are born in some nebulae and create new ones as they die. Some nebulae are small and dense, others can be dozens or hundreds of lightyears across.
Check out the Crash Course Astronomy solar system poster here: store.dftba.com/products/crash...
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Chapters:
Introduction: Nebulae 00:00
Emission Nebulae 1:17
Reflection Nebulae 2:36
Molecular Clouds 3:43
The Orion Nebula 5:07
Stars Form in Nebulae 6:42
Edges of Nebulae 8:32
Viewing Nebulae in the Infrared 10:10
Review 11:04
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PHOTOS/VIDEOS
Saturn www.flickr.com/photos/badastr... [credit: Photo by NASA / JPL / Space Science Institute / Gordan Ugarkovic]
Carina Nebula www.spacetelescope.org/news/he... [credit: NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)]
Crab Nebula sci.esa.int/herschel/53338-her... [credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; NASA, ESA and Allison Loll/Jeff Hester (Arizona State University)]
Carina Jets www.spacetelescope.org/images/... [credit: NASA, ESA, M. Livio and the Hubble 20th Anniversary Team (STScI)]
The Twin Jet Nebula www.spacetelescope.org/images/... [credit: ESA/Hubble & NASA]
Tycho's Supernova Remnant chandra.harvard.edu/photo/2011... [credit: X-ray: NASA/CXC/Rutgers/K.Eriksen et al.; Optical: DSS]
Ring Nebula's True Shape hubblesite.org/newscenter/arch... [credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), and D. Thompson (Large Binocular Telescope Observatory)]
3D animation of the Orion nebula www.spacetelescope.org/videos/... [credit: ESO/M. Kornmesser]
Stardust stardust.jpl.nasa.gov/images/s... [credit: NASA]
From the Pleiades to the Hyades www.deepskycolors.com/archive/... [credit: Rogelio Bernal Andreo]
How to Become a Star www.eso.org/public/images/eso0... [credit: ESO]
The Orion Nebula www.eso.org/public/images/eso1... [credit: ESO/Igor Chekalin]
Trapezium Cluster in the Orion Nebula www.spacetelescope.org/images/... [credit: K.L. Luhman (Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass.); and G. Schneider, E. Young, G. Rieke, A. Cotera, H. Chen, M. Rieke, R. Thompson (Steward Observatory, University of Arizona, Tucson, Ariz.) and NASA/ESA]
PIA08656 www.jpl.nasa.gov/spaceimages/i... [credit: NASA/JPL-Caltech/IRAS/H. McCallon]
Edge-On Protoplanetary Disc in the Orion Nebula www.spacetelescope.org/images/... [credit: Mark McCaughrean (Max-Planck-Institute for Astronomy), C. Robert O'Dell (Rice University), and NASA/ESA]
Hubble's sharpest image of the Orion Nebula with proplyd highlights www.spacetelescope.org/images... [credit: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA), the Hubble Space Telescope Orion Treasury Project Team and L. Ricci (ESO)]
Young Stellar Disks in Infrared www.spacetelescope.org/images/... [credit: D. Padgett (IPAC/Caltech), W. Brandner (IPAC), K. Stapelfeldt (JPL) and NASA/ESA]
The Eagle Nebula, M16 www.noao.edu/image_gallery/ht... [credit: T.A.Rector (NRAO/AUI/NSF and NOAO/AURA/NSF) and B.A.Wolpa (NOAO/AURA/NSF)]
Pillars of Creation hubblesite.org/newscenter/arch... [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)]
Planetary Nebula HFG1 www.noao.edu/image_gallery/ht... [credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)]
Zooming in on the Horsehead Nebula www.spacetelescope.org/videos/... [credit: NASA, ESA, and G. Bacon (STScI); ESO]
Orion, from Head to Toes www.deepskycolors.com/archive/... [credit: Rogelio Andreo Bernal]
Sifting through Dust near Orion’s Belt (mouseover comparison) www.eso.org/public/images/comp... [credit: ESO/APEX (MPIfR/ESO/OSO)/T. Stanke et al./Igor Chekalin/Digitized Sky Survey 2]

Пікірлер: 811

@bingo784 8 жыл бұрын

"I win. Because Saturn." Thank you for this, I am so using this.

@i_smoke_ghosts 8 жыл бұрын

totally!

@TheFireflyGrave 8 жыл бұрын

+Bunkhead Counterpoint in favor of history; the Compromise of 1850. Never mind, you win.

@joshuarieder2865 8 жыл бұрын

+Bunkhead Yes. Also, just show a picture of a nebula and say "I win. Because nebula." Chemistry is famous for explosions, physics is famous for crashing is crashing, engineering is famous for many things-including rockets-, biology is famous for nature, and quantum mechanics is famous for its EXTREME complexity. In it's own right, each is beautiful! But.. Because nebulae, astronomy tops it all! +CrashCourse Galileo did discover the trapezium stars!

@josuealejandro4961 8 жыл бұрын

+Bunkhead Haha exactly my thought

@mcsmaria28 8 жыл бұрын

+Bunkhead LOL! I laughed at that too! I need a shirt that says this!

@MetalPcAngel 8 жыл бұрын

Why is Astronomy the best? Well one can stare at the heavens for ages and still be in awe for what it holds, planets, stars, life.

@Artyforpeace 8 жыл бұрын

While I do adore astronomy, I also find astrophysics and quantum mechanics very astounding as well! ✌🏽️👍🏽👏🏽😉

@kingykongy5676 8 жыл бұрын

+Turin Turambar Sometimes I give myself a headache just wondering how anything is remotely possible.

@dattebenforcer 8 жыл бұрын

+MetalPcAngel Uranus is beautiful.

@EvanRustMakes 8 жыл бұрын

+dattebenforcer it is so tight

@michaelpapadopoulos6054 8 жыл бұрын

+dattebenforcer here is an image of it www.google.gr/imgres?imgurl=www.astronomia.gr/wiki/images/thumb/b/bb/Uranus.jpg/180px-Uranus.jpg&imgrefurl=www.astronomia.gr/wiki/index.php?title%3D%25CE%259F%25CF%2585%25CF%2581%25CE%25B1%25CE%25BD%25CF%258C%25CF%2582&h=177&w=180&tbnid=V_Z9XDP9BY8d2M:&tbnh=140&tbnw=142&usg=__U9iOsNNxm3uKlJZZ5zDYGI46AQI=&docid=PCqw8CzrdxvWKM&itg=10

@Citiesinmotionplayer 8 жыл бұрын

Phil, I want to thank you very much for this series

@PhilipPlait 8 жыл бұрын

+Kim Philipp Möllgaard You are welcome very much.

@allenjohnson3984 8 жыл бұрын

+Philip Plait (The Bad Astronomer) IT'S HIM!!

@socceriscool85 8 жыл бұрын

+Philip Plait (The Bad Astronomer) ALL HAIL Philip

@Imponderabilia995 8 жыл бұрын

+Philip Plait (The Bad Astronomer) You are great Phil :) i was going through some astronomy podcasts and when I saw that You did some with Pamela way back in the day I squealed out of happiness ^^ you have a gift of explaining complex things in uncomplicated way and your voice is great for podcasts too! I don't know if anybody told You that your voice is very soothing. Greetings from Sweden!

@necrofalcata 8 жыл бұрын

+Philip Plait (The Bad Astronomer) Your videos are the favourite part of my week! What are some future topics which you might cover?

@dontuserachelslurs 8 жыл бұрын

I love how "a small dust cloud" is so large that if you were born in the center of it and had our most advanced spacecraft technology you would never see the outside of it.

@zyerrawalton5812 8 жыл бұрын

lol yeah

@garethdean6382 8 жыл бұрын

+Marc Ruth Imagine, a sky without stars, empty and black. What would life there think of the heavens? Of the universe? Would they even build spacecraft?

@brandonthesteele 8 жыл бұрын

That was actually a premise to a Hitchhiker's Guide to the Galaxy story.

@garethdean6382 8 жыл бұрын

Brandon Shaffer Really now? Interesting. Did they build spaceships? Did they pretend the rest of the universe didn't exist? Did some religious fanatic declare a holy war on stars?

@brandonthesteele 8 жыл бұрын

You've pretty much got it! Once they saw the majesty of the rest of the Universe around them for the first time, they immediately got to work attempting to murder everything. It was originally a Doctor Who story. en.wikipedia.org/wiki/Life,_the_Universe_and_Everything

@stoltheds7698 8 жыл бұрын

Because Saturn Because Nebulae Best justifications ever.

@alpinechick53 8 жыл бұрын

Since the beginning of this series I have changed from being Pre-Med in college to going to grad school for AstroBiology and I really do think that this series had an impact on my change. It reminded me about my love for the unknown and the unlimited possibilities that exist right in our own beautiful backyard. I am currently working on research to determine the composition and brightness on Saturn's F ring. It is f*cking awesome.

@rollingkneebar3534 6 жыл бұрын

Sarah Vermeland That’s so inspiring to hear. I’m about to graduate with a public relations degree, but I am insanely passionate about astronomy :)

@amrdawoud5467 5 жыл бұрын

Great! What are the requirements for a PhD in astrobiology? I am a medical student, but I learn about astronomy and astrophysics online. Can I apply for it without a degree in astronomy?

@charlie-laurencesimard9207 4 жыл бұрын

So where are you at 4 years later ?

@fibsniper786 4 жыл бұрын

yeah "Sarah Margaret".... where are you at, 4 years later?

@ftfyoungleon 4 жыл бұрын

@@fibsniper786 she's working for NASA now

@jiritsu0 8 жыл бұрын

I still think this is the best Crash Course series and all because of Phil's enthusiasm on the subject, it is contagious. Thanks for doing this!

@franciscodetonne4797 6 жыл бұрын

“Nebula” is Latin for “cloud” and for once in astronomy we have a name that actually describes the object accurately."

@Killbayne 4 жыл бұрын

"Planet" for "wanderer" fits also kinda

@alfredomarquez1916 8 жыл бұрын

So I've been watching the night for a couple of months with a small 70 mm telescope and the Orion Nebula is just stunning. Are there any more nebulae that my cheap telescope would allow me to observe? Man, the universe is beautiful.

@urahara228 8 жыл бұрын

Can I ask you in what country you live in and if you live far away from sources of light pollution?

@alfredomarquez1916 8 жыл бұрын

I live on a beach city on the Mexican Pacific right on the Tropic of Cancer. I can reach as south as Omega Centauri on a good night. I have very little light pollution towards the west and south (the ocean) and some everywhere else, but leaving town to make observations is possible.

@marcuskaiser4770 8 жыл бұрын

+Alfredo Marquez Well, with a 70 mm telescope you should be able to see most of the messier objects (though not with a lot of detail). A few of the messier objects are nebulae. If you can see Sagittarius, it has at least a dozen beautiful objects you could see with your telescope, among them are the Trifid Nebula and the Lagoon Nebula, along with many more. And a little tip: A lot of nebulae are difficult to see if you look directly at them. You might find one but think it's just a fingerprint or something on the lens. The best way to see them is typically to look at them out of the corner of your eye. (of course, the bigger the telescope the easier they are to see). I hope this helps

@alfredomarquez1916 8 жыл бұрын

***** High five for amateur astronomy!

@alfredomarquez1916 8 жыл бұрын

Marcus Kaiser Thank you! I had figured the 'looking at an angle' thing while looking at Andromeda Galaxy since it only comes as a smudge on my cheap sky eyeball, it is still bananas to see light from an entire different galaxy by basically looking upwards with a tube filled with magnifying lenses. I'll check out all of Sagittarius on a free (hopefully dark) night. The constellation rises considerably well here but late at night and stargazing is already destroying my job schedule.

@rodrigogalilea9409 8 жыл бұрын

This crash course started very basic, like the stuff one learns in the school; but now, each episode has become a really amazing exposition of not that easy to digest concepts, and it's awesome. I see forward to each episode nowadays. I really apreciate what u are doing here. pd: i love the kerbals seated in the desk.

@Zerepzerreitug 8 жыл бұрын

We need a tshirt that says: "I win because Saturn"

@i_smoke_ghosts 8 жыл бұрын

totally!

@UKscalemodeller 8 жыл бұрын

I think 'need' is an understatement.

@millerrepin4452 8 жыл бұрын

+UKscalemodeller No you don't understand if he doesn't get that shirt he will die

@thunter7073 8 жыл бұрын

+miller repin I think he/she DID understand that's why they used the word 'understatement'

@ogghost3258 8 жыл бұрын

+Arturo Gutierrez that would make big $

@brandonthesteele 8 жыл бұрын

Anyone else tripping their shit on that zoom in at 9:24? I love the context, seeing where all these objects are actually situated in the sky.

@gensuave1 8 жыл бұрын

IMO: 9:24 - 9:45 of this video is the best segment out of all Crash Course videos. Reason for that is it takes something I already know and understand (Orion... I can see it and am familiar with it) and links it to a new piece of truth they are trying to teach. That association was unlike any others I have experienced here on KZfaq edu channels. Thanks for that.

@Rohnon 8 жыл бұрын

I wish we could see more colour, like infra red and ultra violett. Butterflies can see those, imagine how beautiful the night sky would be

@ruffydoge5783 4 жыл бұрын

Star* exists Phil: Its days are numbered

@educasanova3488 8 жыл бұрын

I've always knew astronomy is extraordinary, but this episode has caused a massive change in my mind: now I am angry because I'm not able to imagine the vastness and magic that happens every day out there, without us even noticing.

@DanielMoraes1 8 жыл бұрын

"what you see depend's on how you see it" thanks Phill, for teaching me english, astronomy and much more. greetings from Brazil =))

@robertandersson1128 7 жыл бұрын

Thank you very much for making this video, Phil Plait and the rest of the crew at _Crash Course_ Astronomy! The major three things I learned from this episode is that: 1. nebulae are very, very beautiful dust clouds and some can be seen by naked eye, 2. they glow, some due to reflecting light and others due to being hit by light emitted from a star, and that 3. these dust clouds are really, really sparse (not dense), containing about 1000 atoms per sq. m., but stand out in space do to they gigantic size. Thank you for this video!

@1703Blackrose 8 жыл бұрын

I get so excited for astronomy... I save it and watch it when I have full attention and watch it several times....

@Umirua 8 жыл бұрын

You know what I'd like? A video about Wormholes. I know it isn't sure they exist or not, but just the theory itself would be cool

@UnknownXV 8 жыл бұрын

Your enthusiasm is ridiculously strong. You're like a kid in a candy store. A very gassy candy store.

@VandrefalkTV 8 жыл бұрын

When ever I have children, this is the kind of stuff I am going to show them. :) Also, I love this myself so much- so thank you, thank you, thank you!

@AEther0238 8 жыл бұрын

My god, this channel has enough science to last me... a month.

@sheeny455 8 жыл бұрын

This is my favourite Crash Course to date, Thank you so much! P.S. please continue showing the location of stars, planets and nebulae with respect to notable stellar objects/constellations!!

@Xevious5 8 жыл бұрын

Mr. Plait, I can't tell you how much I enjoy seeing your videos every Saturday morning. Thank you!

@Asummersdaydreamer14 8 жыл бұрын

You know you've found a keeper of a video series when so many of the comments for each video are just about thanking Phil and/or Crash Course for creating the series. The astronomy puns and being awed by the universe are bonuses too. Thank you Phil and Crash Course! :)

@mastring1966 8 жыл бұрын

Indeed. this series is just awesome.

@AndreaTani 8 жыл бұрын

I'm just in AWE at every episode, Phil you're an excellent narrator!!!

@Epoch11 8 жыл бұрын

You are so correct.......what you see really does depend on your vantage point. This is something I wish more people realized.

@meikamo 8 жыл бұрын

Phil- another awesome addition to this Crash Course! Can't wait to see all the match-lighting fails on the next blooper reel.

@Lena-fc9ce 8 жыл бұрын

Thanks so much for doing this series, Phil! I love it, it's amazing.

@bangBoomPoof861 5 жыл бұрын

*orion has a bit of a dingle-dongle dink dank hangin' down there at* 6:08

@angeloprisco6457 5 жыл бұрын

Hhahahaa

@samcarter6591 8 жыл бұрын

I used to have a -slight- interest in astronomy, but after coming across this series my interest kicked into high gear and is now a passion. Fortunately enough for me, I live in a small sort of suburban town which obviously allows me to see much more than I would typically be able to in a city. A couple months ago, I bought a pair of Celestron binoculars. Now, with every clear night I get, I walk outside and try to find and observe new objects that I hadn't seen previously with the help of Stellarium on my Kindle and SkyGuide on my iPhone. I'm still learning the constellations though, and so far I've only become truly familiar with the eastern/southern area of the sky- (Cassiopeia, Perseus, Orion, CMa, etc) but I love being able to walk outside at any time of night and knowing what exactly I'm looking at on a moment's notice. M31 and the Orion nebula are currently my favorite 'cloudy'-type objects to look at when I'm out, simply because they're the brightest that I can clearly recognize using binoculars. Star clusters are obviously beautiful too, especially the Pleiades. I've also gotten into a really fun habit of tracking satellites and Iridium Flares. I've recommended this series to a couple friends with a little interest in astronomy and frequently post about it on Facebook, such as notifying people of upcoming astronomical events and -politely- clearing up any misconceptions as they cross my path. But anyways Phil, I thank you for helping me to discover my passion for astronomy and teaching it to me (and everyone else) in an interesting and simple way. Keep up the good work!

@ariiiiii2r 8 жыл бұрын

this channel, series, and subject are all my favorites on youtube! I really love Phil and I really love these videos. keep doing what you're doing!!! :)

@CtrlShiftGo 8 жыл бұрын

Your descriptions are so beautiful and vibrant. Thank you for the work you do.

@bloodysoviet12 8 жыл бұрын

Anyone else see a face at 1:34?

@holycrapfortnite 6 жыл бұрын

i did its scary but its around 1:35

@suhailahmad3737 6 жыл бұрын

Yeah

@toddl001001 6 жыл бұрын

Cool

@PickyMcCritical 6 жыл бұрын

Whoa that "face" has way more detail than I expected. I thought it'd be dots that look like eyes and a mouth but sheesh :o

@phoebesue7167 6 жыл бұрын

Yeah, it is a little scary looking. I wonder if they did that on purpose.

@jeromydoerksen2603 8 жыл бұрын

Man, one of the best episodes in the course. Awesome

@koffieslikkersenior 8 жыл бұрын

I don't know mr Plait... Photos of the microscopic world are kind of awesome as well. I'm torn to shreds. Like a nebula lol

@EvocativeKitsune 8 жыл бұрын

The beauty and vastness of space are what are pushing me to become an aerospace engineer. Thanks for these videos.

@NihouNi 8 жыл бұрын

Love your enthusiasm. Thanks for the knowledge!

@MrPatschen 8 жыл бұрын

Man, this is one of my favourite shows on youtube :)

@ChinasPolitics 8 жыл бұрын

More gold. As always. Well done!

@JD.......... 8 жыл бұрын

Thanks Phil! You're undoubtedly one of the best on Crash Course

@perspectivedetective 8 жыл бұрын

Yay!!! I always love seeing a new Crash Course Astronomy episode pop up in my subscriptions. Today's gonna be a good day. :D

@25charlow 8 жыл бұрын

Nebulae have to be the most spectacularly beautiful structures in our universe.

@viktornerlander1409 8 жыл бұрын

I've always wondered about those tightly placed stars within Orion, thanks for clearing that up!!

@roblowery3188 6 жыл бұрын

"Because" Because the videos are outstanding. Thank you CrashCourse

@Macconator2010 8 жыл бұрын

Physics is definitely the most important science. Come at me biologists :p. Nah.. Just fucking with ya. We're all on the same team. Go team science!

@hhiippiittyy 8 жыл бұрын

+Macconator2010 lol team funny!

@khhnator 8 жыл бұрын

+Macconator2010 biology is more of a liberal Art ;)

@Alex1611AD 8 жыл бұрын

+Macconator2010 team Evil Lucion religious freaks

@Macconator2010 8 жыл бұрын

+khhnator I remember at uni how the biologists and physicists argue about which science is better. It's pretty funny. Bring a creationist into the room though and they quickly get laughed out the door. Ahh sweet memories. 😌

@patrickmorgan3840 7 жыл бұрын

Harry Plinkett Chemistry=building blocks of universe Physics=laws of the universe Biology=details of the universe Mathematics=coding for the universe

@MrLittletube 8 жыл бұрын

Phil, the biggest fear of my average week is that this show finishes without any warning. Other than the occasional 'more on that in a future episode' I literally have no idea. i am on tenterhooks. I cant deal with the suspense any longer please tell me how many episodes have you planned. You are my hero.

@TheJackmaster69 6 жыл бұрын

I REALLY LOVE THE WAY YOU PRESENT YOUR SUBJECT. YOUR PASSION SHOWS THROUGH

@tifferifficxo 8 жыл бұрын

my favorite episode thus far. nebulae are so fascinating.

@swad2315 8 жыл бұрын

the beautiful images made my day much cooler

@iill2389 8 жыл бұрын

YESSSSSS Been waiting all week! I love this show!

@Antipersonenmine 8 жыл бұрын

I love this format! I hope you plan to do this for a long time Phil :-)

@nqinadlamini 8 жыл бұрын

This was plenty educational. I learned a few things. The images were divine. Thanks Crash Course and Dr Plait.

@nunoteixeiradesign 7 жыл бұрын

Phil, I love your videos...good work!

@Delibrium 8 жыл бұрын

Phil i live you man and i want to thank you a lot! you give meaning to my life

@shaterproofblosm 8 жыл бұрын

Phill... You're attitude is a life lesson. Man i love this guys vibe :3 also you heard it hear first, orion op :'3 pls nurf

@baileezed 8 жыл бұрын

I love this series it's so beautiful

@i_smoke_ghosts 8 жыл бұрын

yea me too phil. i love ya werk man. thanx for doing wat u do.

@Yojack872 8 жыл бұрын

Woooooo can't wait till the next episode!

@sharanski 8 жыл бұрын

:D been excited for this!

@masterofktulu 8 жыл бұрын

GOD I LOVE THIS SERIES!!!

@rdallas81 8 жыл бұрын

I guess it would be fuzzy..........especially since its below "Orions Belt".........sorry...had to say it!

@theunshapedfawn1391 7 жыл бұрын

Great Episode!

@holirumicsfriend 7 жыл бұрын

I've always wanted to know more about Nebulae, I had a few minutes, did a quick search, and was pleasantly surprised with the video and content! really good video, highly informative and to the point. Great Job!

@jiamingzhang9620 8 жыл бұрын

the pillars of creation is so pretty

@Convolutedtear 8 жыл бұрын

love these so much!

@TheMan83554 8 жыл бұрын

"You can't beat a nebula, because Nebulae!" Can't argue with that.

@PurpleBadger 7 жыл бұрын

I love space so much.

@Cara.314 8 жыл бұрын

I have a huge print of the Carina Nebula hanging above my desk. i love it so much.

@collegelevelphysics7629 Жыл бұрын

Thanks for making such an informative video!

@cynthiadefillippi3749 8 жыл бұрын

Here are some questions: 1) Is fusing hydrogen into helium the only way to ignite a star, or can a star begin by fusing heavier elements? 2) Can molecular clouds produce stars? If so, is this because the molecules in the soot can become condensed enough to fuse, or because molecular clouds also contain free elements that can begin fusion? 3) Do star and their surrounding planets form simultaneously, does one happen first, or are we still figuring that out? Thanks!

@ferryjacobsen8003 7 жыл бұрын

Phil I love this series and I really like astronomy.

@isbestlizard 4 жыл бұрын

THANK YOU for that zooming at 9:25 I've been trying to get a handle on the actual size of these spectacular images in the sky. Like, it's so hard to imagine close by galaxies being the size in the sky as the moon because I never see anything cos of light pollution but it's amazing seeing the actual sizes against orion

@Wymetime 8 жыл бұрын

Seriously, you guys rock. I get giddy every week.

@PinkChucky15 8 жыл бұрын

They're beautiful and amazing.

@rhyswilliams9618 8 жыл бұрын

Yay! Thank you ! I love nebulas!! Also could you do a crash course on magnetars

@wigymbertdieujuste4769 5 жыл бұрын

Wow I love this show, great work

@Quester91 8 жыл бұрын

Astronomy series is just awesome, I never get tired of watching it

@gh0sttale358 8 жыл бұрын

Just sayin' that nebulae are the most beautiful thing in the observable universe

@codamarcus 4 жыл бұрын

LOVE THIS VIDEO!

@StarBlazerM31 6 жыл бұрын

I love these videos. Thanks so much

@ptxaholic 8 жыл бұрын

Phil. You rock.

@Sandouras 8 жыл бұрын

Please never stop making episodes.

@KarstenOkk 8 жыл бұрын

Several light years are a lot of centimeters. Thanks, Phil!

@peesweezy4553 4 жыл бұрын

I still find it amazing how we can see the nebulae or galaxies, so massive, so distant, millions of light years away, just a speck of the great attractor

@raynds6563 8 жыл бұрын

Hey ive been watching this series for a while and i've just started uni to do aerospace tech!! Discovering science on youtube was what got me interested in my course so thank you for making science interesting! :)

@gakzor 7 жыл бұрын

Something that's bothered me a bit in this series - the light that we see from these stars (and nebulae and all the other wonderful things out there) is not real-time, in that we are seeing the past from however long it took that light to travel to us. I do understand that sometimes you take liberties to simplify a concept (though this would have been an easy one to introduce, in my opinion), but when Phil says things like "literally stars that are forming right this very minute" he seems to be taking the liberties a bit far; it could easily have been reworded to be less, well, literal. That is the one thing that's bothered me in this series, and it hasn't come up much. So basically: I love the series and thank you very much for it!

@fitnessoni7881 8 жыл бұрын

No cliff hanger this time! This by far is on of my favorite subjects. Nebulas are just amazing to look at.

@sciblastofficial9833 7 жыл бұрын

Another fun fact: The nebula called, The Boomerang Nebula is actually the coldest thing we have ever seen, which is not artificial. It's about 1 degree Kelvin above zero. Absolute zero. It's the coldest temperature ever, that is 273.15 degrees Celsius below zero. The Boomerang Nebula is therefore at temperature of 272.15 degrees Celsius below zero.

@CryExXx 8 жыл бұрын

2 days massive speed SOLAR WINDS MY HEAD!!!!!!

@BrandensGaming 8 жыл бұрын

I love watching these before raid night

@robson668 8 жыл бұрын

Hi, discovered your channel just recently, weird i didn't found out earlyer, great educational videos on the most important topic in existence : cosmology! You also hit the nail with all the merchandise in view, lego rover, ksp figs, etc...Great! ;-)

@rOceanIngle 6 жыл бұрын

Great session!

@TrickiVicBB71 8 жыл бұрын

These Nebulaes are so beautiful. Most of my wallpaper on my laptop are space related.

@davidhall2197 4 жыл бұрын

There isn't a high school or college professor who'd want me in their class. I know I'm not the brightest bulb in the box, but when my curiosity get going, I'm relentless with questions. My questions would look like an outline for a book report x 100. Example: I. question A. question 1. question a. question b. question 2. question I think you get the idea.