The Solar System Explained | SciShow Goes to Space

Outer space contains more incredible phenomenons and unsolved mysteries than anywhere else-and we think it's just fascinating. Join Hank for an incredible tour of our solar system in this SciShow space compilation and find out just how vast our universe really is! Hosted by Hank Green.
Do you love our space videos? Did you know SciShow has a whole channel dedicated solely to space? Check out the link below for more videos all about the universe!
Checkout / scishowspace for more great content about space!
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org
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Original Videos:
Diving Into the Sun: • Diving Into the Sun!
What's It Like On Mercury?: • What's It Like On Merc...
Why Venus Is THE WORST: • Why Venus Is THE WORST
Could Life Be Older Than Earth?: • Could Life Be Older Th...
Terraforming Mars into Earth 2.0: • Terraforming: Can We T...
Take a Tour of Jupiter and Saturn: • Take a Tour of Jupiter...
Uranus and Neptune: • Exploring Uranus and N...
Pluto: Still Not A Planet: • Pluto: Still Not A Planet

[@YOOTOOBjase]

A whole Sci show on SPACE?! My initial reaction before I remembered I'm subscribed already

[@shandya]

Lmao same

[@chiblast100x]

Right?! I tend to watch all the Sci-Show channels, but Kids which I don't watch, as though they weren't separate channels only to occasionally be reminded they are, in fact, each their own thing.

[@ellenbryn]

I'd love a tour of, say, the biggest five Plutoids, because a lot of Pluto-fans don't realize that part of the problem was that we started finding a lot of other Pluto-sized worlds out there, and we didn't want to have to make schoolkids memorize ALL of them! (Also, Pluto is smaller than most people realize; seeing it superimposed on a map of the US is surprising.) Besides, more people should know about Haumea. It's nifty! :)

[@notyesbetothefallssorcerer3272]

Know enough about the solar system, it shouldn't be a requirement to learn it about it in primary. If we we're talking about common sense, maybe, it's not easy to get over there. I prefer life skills and moral overall. Maybe better yet, help the kids find their passion and get an early start on it.

[@christinedrummond4040]

@@notyesbetothefallssorcerer3272 what if their passion is learning about the solar system and outer space? smh

[@notyesbetothefallssorcerer3272]

@@christinedrummond4040 at this point, I want a school completely dedicated to astrology. Tho for general stuff in primary, it should be summarize in a book that all students can lift with ease.

[@Jellyman1129]

The data is what the data is. The Kuiper Belt is full of small planets. It doesn’t matter if school kids can’t remember it, just get used to it.

[@EmeraldArchive]

Spaceballs

[@lachiem]

Thanks for the important info, MrBigSweaty

[@EmeraldArchive]

@@lachiem you're welcome random citizen

[@TwinMillMC]

PISS PISS POOPY DOODY PEE PEE

[@jaheim1872]

*giant space balls

[@degummybear]

Hmm yes good point 🧐

[@sensibleb]

I hope there are similar promo videos for the other SciShow properties: Kids, Psych and Pee.

[@lightron4732]

Especially for the last one

[@ArturBriones]

We already had one for psych

[@Thessalin]

I dunno, SciShow Pee hasn't had content in FOREVER. Us Pee-ers and very passionate about our channel.

[@clancyrosenberg614]

Did you guys know that pee is like pokemon? They're both stored in balls.

[@oldcowbb]

@@clancyrosenberg614 they aren't, sperm on the other hand ...

[@Chromia1]

We love you SciShow!

[@Omnifarious0]

I hope SciShow space isn't in trouble.

[@curiodyssey3867]

What do u mean ..?

[@abhinavbhise3816]

@@curiodyssey3867 because they are using this channel to promote scishow space there's a chance it might not be doing that well and thus to get more viewers to check it out this video was posted.

[@Cashman9111]

I wouldn't say so, it has on average 100k views on video which isn't that much lower than this channel

[@jean-lucchoiniere5587]

It’s likely it’s doing well and they don’t share a viewer base, so they could be wanting to get more of the audience to be cross subs.

[@Omnifarious0]

@@Cashman9111 - I should've checked the numbers first.

[@joshbobst1629]

"At which point it disintegrated." Me: "awww"

[@c.g.silver8782]

The SciShow multiverse does crossovers in itself 👍🏻

[@RangeRoad.Photography]

Great episode, made me realize how I've been watching you guys for quite a few years now. Keep up the great work👍

[@user-wb8pp4tk8c]

I genuinely and honestly think that the possibility of being the only intelligent life in the universe is scarier than being one of many.

[@robertgraybeard3750]

X - if we are the only intelligent ife, . . . we'd better be careful and survive to spread throughout the galaxy.

[@ashardalondragnipurake]

being alone wouldnt ad any more dangers then being not alone its sad i guess but im not sure why it would be scary the idea of there only being one other intelligent life, thats a concept with a lot of scary but unlikely options and if we are the only intelligent life there is no reason for us to be the only ones forever so there is really no reason for it to be that relevant time will time on if we die

[@user-wb8pp4tk8c]

@@ashardalondragnipurake fear comes from other things than feeling like you're in danger... the idea of being essentially a fluke of self awareness in an large, empty and infinite galaxy is horrifying in an existential way. its a curse of solitude. so, again, i stick with my statement that it would be scarier to be alone.

[@juice8292]

I AM SOOOOO HAPPY I FOUND THIS SITE ❤️ YOU GUTS ARE COOL, KEEP UP THE GREAT WORK

[@funnygrunt_o7]

“Some of you have never seen sci show” Welcome to the cool people club

[@tenzinrigdol5936]

Did you know “terraforming” was a term coined by a sci-fi writer.

[@bryanandrews5214]

30:13 omg I'm so mature, I laughed my ass off when she said, "Let's take a look at Uranus first"

[@adamqazsedc]

LMAO

[@Krystalmyth]

She knows what she did lol

[@militantpacifist4087]

You should make one about the moons, the asteroid belt and the Kuiper belt.

[@EliteVeyron835]

"We are not metal enough for Venus...yet"

[@paulgibbon5991]

One interesting possibility could be dropping a probe that takes the form of an balloon or dirigible. The thick atmosphere would let it carry a large payload for a long time, and the temperature would only be moderately hellish.

[@katyungodly]

I used to be a Christian (devoutly so) and based on the people I met in church I'd be willing to bet that at least a few Christians believe that hell is on venus. Many believe it's inside the Earth. I'd say most believe it's in another dimension.

[@toshomni9478]

They don't have to land on the surface just to learn a lot more about the planet. Just having an orbiter would be very useful.

[@Krystalmyth]

@@katyungodly Did a single one of them contemplate the possibility that the only place known to contain the concept of Hell, is within mankind?

[@wasabista1613]

I wish you guys would stop taking off your scientist hats and putting on your social engineer hats to push the global warming trope. No, Venus has little to say about the greenhouse gas effect on Earth. Carbon dioxide is a trace gas on Earth, much less than 1%. On Venus, it's most of the atmosphere, and that atmosphere is 60 times thicker than Earth's as you point out. A very weak greenhouse gas gets a lot stronger at that density and pressure.

[@JimBear]

Nice video, and nice evolution of Reid into his current form, which happens to be my favorite.

[@snowballeffect7812]

Reid through the various epochs of scishow space!

[@MaryAnnNytowl]

Reid? Might want to edit that, SE.

[@snowballeffect7812]

@@MaryAnnNytowl Is his name not Reid? Reid Reimers?

[@boepsie8975]

already watched all of these but I don't mind a round 2

[@Shit_Shooter]

I'm sorry this is totally just my opinion and I absolutely love SciShow and all it's branches and all the people working there. Maybe it's the fact that I have anxiety already but this gentleman (sorry, I don't know his name, the one at the beginning) it stresses me out to listen to him because it sounds like he's in quite the exacerbated rush!

[@Giganfan2k1]

Honestly we need to redefine planets. Looking forward your 6 hour video. XD

[@RotcodFox]

I love videos that discuss the mysterious dwarf planets in our solar system

[@pxssplz]

I love this channel and sci show space. I don’t miss many videos

[@DrJALAGHARI]

Thanks for sharing such useful information through this amazing video.

[@zoogoober]

Just lovely. Thank you.

[@Makimono]

It’s thanks to this video and the comments below that I now know of other scishows. I’ve been missing out

[@MaryAnnNytowl]

Hank also makes a cool channel called Into the Microcosmos - definitely worth checking out!

[@ravioliis_]

these new thumbnails keep tripping me up 😭 ive been looking for this vid for the past few nights (for sleepy purposes) and i kept skipping over this one lmaooo

[@stirgy4312]

"Let's take a look at Uranus" 😆 I'm a child...

[@malachichampion]

That's the one that got me! 😂

[@gromhl5901]

Yeah.... I looked for this comment to though soooooo

[@elongatedcarp6309]

Hi hank, I think science is pretty cool and neat too 🙂

[@charlesbarden2970]

There's some serious theories around creating a magnetosphere for Mars. My personal favorite of which is just placing an artifical one at the Lagrange points to do basically the same thing with a much smaller magnetic field.

[@saladparfait]

Alternatively, push Mercury to spiral out until they collide, and hope we don't get caught in the crossfire. ;)

[@xenicmark]

@@saladparfait 🤔ally thought never actually thought of that. How about drilling to its core and detonating a bunch of nuclear bombs?

[@shikasta123]

I love SciShow Space :D

[@francispitts9440]

I’m already subscribed to the other channel and it’s great. I highly recommend it.

[@Dante...]

Katelyn: Let's take a look at Uranus first. Me: Whoa whoa whoa! At least take me to dinner first.

[@clamchowderdanceparty4570]

I like the giant mirror idea the most

[@friedpancakes266]

SciShow space is also a source for space news

[@disorganizedorg]

I enjoy the compilation videos, but as science marches on it would be great to include the original release date of each video (ideally both in the video as each is introduced and in the description along with the links). The Venus one in particular I think is outdated with respect to the lack of upcoming missions.

[@squirrelballer9029]

I'm sorry. I reverted to a 12 year old, when she said,"Let's examine Uranus first." Couldn't help it 😆.

[@chrisbecker5472]

Dr Proctors opening line.

[@christophernettles2468]

When will you guys do a video on the UAP report???

[@Pluto137]

Continuously amazed how much more i there is to learn on things i thought i knew a 'decent' amount about😊

[@artornis606]

I did know about scishowspace and I love it

[@daydreamer226]

Another thing about the planets. Any one who watches sci-fi knows that whenever you pan out from Earth, all the planets are lined up in military fashion. i.e., you always see Mars, Jupiter, Saturn, etc. without fail. Those planets are good little soldiers

[@kodakincade8063]

Love scishow and all of sister channels!!!!

[@equesdeventusoccasus]

I actually heard about SciShow from watching SciShow Space.

[@h7opolo]

petition to officially change the name of the planet currently known as "uranus," please. i dont know what substitution to suggest, but i'm sure there're some great options. 30:13

[@Hawks1-2-5]

Futurama had a good substitute.... urrectum😜lol

[@gljames24]

George

[@svenmorgenstern9506]

I'd go for "Canada", but it's already taken. 🍁

[@StephanFitzgeraldTay]

we just need to pronounce it correctly. It's a Greek word and wouldn't be pronounced like Your-anus, but more like Oo-ran-os.

[@dragonangel1786]

I can't wait for the show on the moons of Jupiter, then another on those of Saturn.

[@robertvirnig638]

I was somewhat disappointed that this video only included rather rudimentary facts about the 8 planets and sun that I mostly already knew and not more information about all the moons which are much more interesting.

[@chrisclifton7276]

SciShow is just a cooler version of Big Bang Theory

[@LandoHitman]

Sci-Show Space is the best Sci-Show

[@mandalor45]

I have been following you before sci show, Hank

[@MaryAnnNytowl]

*since before You're welcome.

[@titan844]

“Uranus” doesn’t generate much internal heat…. It made me laugh, sadly.

[@reneenayfabnaynay5679]

I thought, "How does he know? It's mine! Oh! He means the planet!"

[@itsdonaldo]

There's lots of jokes about Uranus but none about mine.

[@brindlekintales]

@@itsdonaldo Count your blessings, then!

[@briand.reynolds474]

That's pretty sad... But we all giggle on the inside a little at least, at least you can admit it 😎

[@inedibledelicacy]

@@itsdonaldo so let's take a look at uranus first ( 30:13 )

[@karenhackney9920]

My sons just ate up this episode. Literally glued to the TV! 😅

[@tyler7535]

Reed has a really nice voice. Also another great video, gotta love SciShow!

[@ashadieeyahsultana1062]

I think a good addition to the definition that those members of project Horizon suggested to make sure it does not include bodies such as the moon is as follows: The body in question most NOT be in orbit around another celestial body that is not a star. By adding that to the definition, it would eliminate bodies such as the moon, but would still include bodies like rogue-planets and exo-planets!! Just a suggestion ^w^

[@pjduker05]

"Let me see what Spring is like on, Jupiter and Mars." Really cold on Mars, really hot and crushing on Jupiter.

[@JesusGarcia-lw7nd]

Pluto is a planet!!

[@minnymouse4753]

Wonder what would be like to be advanced space travelling civizilation

[@idahogreen2885]

We ARE an advanced space traveling species

[@trustmub1]

That intro is nice, nicely evolved...

[@wanderlustexcursion]

comprehensive and precise vedio on solar system. thanks

[@acidblue8111]

Hank's opening kinda made me nervous about Scishow long term

[@joshbobst1629]

This is a new version of panspermia I'ma have to think about. But this makes the Fermi Paradox even more potent.

[@hardcoregandhi]

Turns out I was already subscribed, I've never seen it on my subscriptions page

[@marcusimpresario7724]

~ Watts per second! What the hell is that!? ~

[@kinkydervish]

This was so awesome

[@anuragguptamr.i.i.t.2329]

Happy Guru Purnima, dear teacher.

[@BrokebutCreative]

I honest did not know about scishow space. I have been watching sci show, pbs space time, pbs eons, be smart, and other space, earth, history etc. Channels For Maybe 2 years and not once has sci show space been recommended and this is the first I've heard.

[@np8700]

“Exposphere” is misspelled in the video. I know I’m being that person, but I love these videos, and I don’t want people to misspell new words that they learn from the video, especially if the word is presented in the video.

[@marshalepage5330]

The fact that changes of pressure change states of matter makes me think that if an object has large enough mass it would almost always release heat at the point matter manages to get far enough away from it's core to decrease the amount of pressure on the object to the point that the pressure decrease causes the liquid to start to solidify. In other words the larger the mass the more likely an object is to heat up.

[@Rico-Suave_]

Watched all of it

[@Frozencreek1]

amazing video. I like the new faces. also "SLEF"?

[@johnbradley1139]

"Deep sea submersible" + "dangerous" has aged accurately. #Titan

[@rhys69420]

I was looking for this lol

[@reneenayfabnaynay5679]

The flat-earthers need to watch this.

[@ihopetowin]

The new generation of flat-earthers is the flat-spacers.

[@MaryAnnNytowl]

@@ihopetowin nah, just space deniers. It's the firmament up there, holding all of those lights in the sky, dont'cha know? 🙄 And sadly, no, I am not making that up.

[@TheGbelcher]

Do flat earthers also believe the sun and moon are flat as well?

[@cjmattrocks]

No they don't. They don't base their beliefs on facts, they base them on distrust. It doesn't matter if they see a blue sky themselves, if the government told them it was blue they'd argue it is red just because they distrust the government. Facts don't work on propel who don't care about facts.

[@eymannassole6162]

You know I'm a sub already 😉

[@user-lehsun-le-garib]

19:15 This sounds so good!

[@abdelnasermahmoud1259]

Everyone talks about terraforming as if we can achieve it by taking a paint can and spray it while landing , and magically as we land, we can all take off our helmets and space suites and breath freely. Then we wake up next morning and start farming and going to work.

[@Amocles]

You're pretty good at puns ;)

[@andrewspohrer7183]

Alternatively, if we simply slice up the classification of "planet" to more subcategories which would likely separate planets like Jupiter (gas giant) away from the same category as earth and include planets in their own category for planets like pluto (dwarf planet). Which I'm pretty sure is a classification system that already exists but has failed to be expanded on and refined because of the fact that humans are inherently stubborn and resistant to change.

[@johanwittens7712]

This also ignores the fact that these subclasses are just as arbitrary as the current system. And since the universe is capable of creating pretty much any kind of planet of any size with any atmosphere, composition, and other characteristics, the more planets we discover the more we'd notice that a bunch of planets do not fit our arbitrary categories. It'd be the whole pluto discussion all over again. There's just too many possible combinations, variations, etc possible. I mean, the more exoplanets we discover, the more we've noticed that even our old classification system of outer cold gassy gas giants and inner warm rocky planets doesn't even apply to most star systems out there. We seem to be again the exception. Hot gas giants close to their star seem to be much more common. Small rocky planets seem to be more rare and huge dense rocky planets multiple times the size of earth seem to be more common. We've discovered that many planets seem to be massive watery ocean worlds with oceans hundreds of km deep, like gas giants but with water. And so on. And what about Roque planets? Are they a class on their own? Or should we make subclasses for them too? Are those hot Jupiters truly gas giants? Are those Massive water planets truly rocky planets or "liquid giants"? And that's not even going into all the dwarf planets riding the line between asteroid and dwarf planet that are out there, that we haven't even begun to discover around other stars. Thruth is that any classification system is an arbitrary construct us humans use to try and make sense of the universe by trying to put things into boxes and classes. But tons of objects out there in space that could be called planets will refuse to fit neatly into our classification system no matter what, since infinite possibilities and infinite diversity is possible out there...

[@marshalepage5330]

The influence of gravity on matter and matter on gravity affecting state changes explains both why a sun would exist and why a universe would expand.

[@lumenhart]

Just showed my mother . Not seen it before so perfect opening

[@maximilianosalvador9559]

Day 10 of asking for the return of Scishow Quizshow

[@EliteVeyron835]

Agreed please return Scishow Quizshow

[@kraakenhex8459]

HI HANK!

[@BaseStructure]

Hi hank love your vids

[@Kenkire]

PLEASE PUT THAT IT'S A COMPILATION IN THE TITLE!

[@rikrikonius1301]

Seconded. Either in the title or a tag (or both, both is good) But it gets old clicking Sci Show links and finding out that it's a compilation of stuff I've already seen.

[@VisualiseTheFun]

Fantastico video

[@tx2sturgis]

Roughly 'sphere shaped and cleared it's orbit of debris' Whoopee! My Roomba is now officially a Planet.

[@flea0chilipeppers]

The limits of human exploration is Earth’s atmosphere

[@ashes_menagerie]

Thanks Hank 💗

[@AllDayBikes]

When you go to subscribe to SciShow Space , but you already were lmao

[@joshpittman1982]

A fly by of Uranus, childish giggles begin.

[@CheatOnlyDeath]

I'm undecided about this presenter.

[@ImzelM]

Waiting for the 100 planets video. It will be epic

[@llYossarian]

16:58 - Thank you SO much for not saying "...begs the question" here. Just MAYBE we'll manage to "save" that one/get it back.

[@milintica02]

The new intro logo is bangin! 😎

[@dr.jamesolack8504]

Is that like.....the intro logo is sick!?

[@mikep3226]

"Mars: a scenic place to settle, and if you choose the right spot, you could use one of the Viking landers as a lawn ornament." :-)

[@madamsloth]

Viva la Pluto ❤️

[@gloffrey4968]

I dont know why you're so excited to tell me about the sun but I kinda like it

[@old_arsed_eldergoth2800]

We definitely need to do more exploration of our outter solar system! #probeuranus

[@cassieoz1702]

Why don't you put links to all the other sci show (and perhaps vlog brothers etc) in the 'Channels' tab of the Sci Show YT home page?

[@devoshaneo]

Oooh Tell Me More About Those Potential Planets Please...

[@danieldavis5465]

Wow “420 million billion billion watts of power” The OG BLAZE IT!

[@mattlapointe-smith6257]

So Mercury has stretch marks due to it’s early weight loss routine?

[@paulgibbon5991]

You've got to admit, it paid off. It's looking pretty hot now.

[@zoidbrug1989718]

24.42.. wow I mean damn