The Moon: Crash Course Astronomy #12

Share it with your friends Like

Thanks! Share it with your friends!


Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation.

This episode is brought to you by Squarespace:

Table of Contents
Many Millions of Moons 0:27
Big Impact on Little Earth 3:42
Craters and Maria 2:15
Water on the Moon? H2O Yeah! 8:06

PBS Digital Studios:

Follow Phil on Twitter:

Want to find Crash Course elsewhere on the internet?
Facebook –
Twitter –
Tumblr –
Support CrashCourse on Patreon:

Moon Phase 47.7% [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
The Blue Marble [credit: Credit: NASA Goddard Space Flight Center Image by Reto Stöckli]
Dramatic Moonset [credit: G.Gillet/European Southern Observatory]
Structure of the Moon: [credit: Kelvin Song via WikiMedia Commons]
Crater Science Investigations: [credit: NASA/Goddard Space Flight Center]
Lunar crater Daealus [credit: NASA]
Mare Humorum [credit: NASA]
Luna 3: [credit: NASA]
Farside!: [credit: NASA/GSFC/Arizona State University]
Theia Earth Collision: [credit: Ron Miller, used with permission]
Earth Seen From Early Moon: [credit: Ron Miller, used with permission]
Moon Struck: [credit: NASA’s Goddard Space Flight Center]
Tycho: [credit: NASA/Goddard/Arizona State University]
Double crater on the moon: [credit: ESA/SPACE-X (Space Exploration Institute)]
Stream of Craters: [credit: NASA/Goddard Space Flight Center/Arizona State University]
Full Moon: [credit: Gregory H. Revera]
Rille on the valley floor, photographic mosaic from Apollo 15: [credit: NASA]
New Views of Lunar Pits: [credit: NASA/GSFC/Arizona State University]
Crater Erlanger: [credit: NASA/GSFC/Arizona State University]


Franz Ferdinand says:

lol you fools Moon is already occupied by Nazis, it is known.

TR12 says:

That's me I love math,science and engineering

Ellie Johnson says:

Doing physics assignment and we have to choose a reasonable distance away from the earth to have our orbit…

I chose 20,000, which is what you guys said was the location near the formation.

Aleksandra Helena Pasieczna says:

My boyfriend wonders, why he can not force me to watch any science-linked videos, they all made me sleepy, but yours I could watch at 1:40 AM while being sick and tired and still found it very interesting  🙂

Phillip Green says:

I still don't understand if this is an American publication and promoted by PBS, why they use kilometers instead of miles.

ED16 ED17 says:

Would be more interesting if the guy wasn't speaking at 100 mph……..what's all that about! Must be an ego thing!

lil kamm says:

luna is most likely hollow, along with many other astral bodies.. let's be honest.

The Big Bang says:

Who saw the supermoon at Dec 14?

Nick Gur says:

Isn't the actual name of "The Moon" Luna?

Jonny Provost says:

How do you know the moon and all those events happened billions of years ago? It makes no sense to me how you could come up with such an astronomical number lol. How old would you say the earth is and what would your evidence be?

Trenton Cavet says:

When you're a teenage student in a country who just now got an interest in science, math, and engineering.

Jonathan Mosher says:

There is no evidence of anything as large as a planet hitting us, the chances of it hitting us and creating something 1/4th the size yet 81x lighter than earth, 400x as close, yet 400x smaller than the sun. Plus, the dance the earth, moon, and sun do called scissoring, makes it almost more likely it was put into place, to create life. We have yet to find anything like it anywhere. If we were seeing this on another planet we'd call it a binary planet system.

Divergent Droid says:

Can you see Tycho Crater with the naked eye ?

Posh Potato says:

the guy at the start sounds like Salman Khan

Rufeyda Hassan says:

Isn't the official name of the Moon, Luna though. Isn't the Moon just a layman name

_citizen says:

Moon wards is awesome but yesterday Elon Musk announced his plans to make humanity a "multi-planetary species" through a SpaceX Mars colonization mission. I don't know about you guys but I find the prospect incredibly exciting!

Robert Andersson says:

Thank you for making this astronomy video, Phil Plate and all the others at Crash Course! The Moon is also very interesting, but I do not think our is the most interesting of all the moons in the Universe or even the Solar system. When are you going to talk about other moons? Anyway, thank you for the video!

Jeevan Nathan says:

We never landed!#NeilNotMyChristian

Dimitrios Spyridon Chytiris says:

that is in English, the name of the moon is not Moon

ap2pat says:

We need to get a massive telescope in one of those permanently dark craters!!!
Uchuu Kyoudai anyone 😀

TheDW42 says:

Nasa discovered the moon "rang like a bell' when Apollo 15 crashed it's lander into its surface. I thought it was generally accepted the moon is 'hollow' in that it has no core and no heavy elements in the samples brought back to earth.

Shivani Ranjan says:

I will go there someday!! 🙂

Martin Svärdsros says:

Great explanation!

Goals Recreated says:

My word, I was thinking about doing an aerospace degree and that ending has inspired me to do it even more so!

s ss says:

We won't be going back to the Moon, but going to the Moon for the first time.

Are we fooled so easily?

Really, a little common sense goes a long way.

RayDaGaminTray says:

Look at Jeb, Bill and Bob on the shelf back there!

Gunflower says:

1:38 if the object is farther away, shouldn't the moon be smaller due to perspective
-sorry im new to this, good vids tho 🙂

Guillermo2017 says:

wonder if people will pay more to drink Moon water.

Write a comment