Like HowStuffWorks on Facebook!

Moon Rock Study

From the archives of Discovery: When NASA astronauts return with moon rocks, teams of scientists run the rocks through a battery of tests to analyze their properties. Learn more about NASA and moon rocks in this video.


Most Watched in Space

Most Watched in Space
5:12

Space School: Mysterious Objects

Most Watched in Space
3:00

On Jupiter: Jupiter Satellite

Most Watched in Space
2:12

On Jupiter: Jupiter's Own Little Solar System

Most Watched in Space
4:13

Spaced Out: Sex in Space

Most Watched in Space
1:52

Rocketships: Tether to the Moon

Most Watched in Space
2:19

Planet Storm: Jupiter Probed

Most Watched in Space
4:24

Space Station Parts

Most Watched in Space
2:33

Radio Telescopes

Most Watched in Space
5:10

Space School: Stars

Most Watched in Space
2:08

Spacewalkers: The Vomit Comet

Most Watched in Space
2:43

Coming Home From Space: Space Shuttle's S Turns

Most Watched in Space
1:44

How the Universe Works: Black Hole Hits Earth


Recent Videos in Space

Recent Videos in Space
1:46

NASA's Unexplained Files: Something Out There

Recent Videos in Space
1:55

NASA's Unexplained Files: The Condon Report

Recent Videos in Space
2:45

NASA's Unexplained Files: Blinking Dots

Recent Videos in Space
2:44

Oddities: Cow-Eyed Flower

Recent Videos in Space
2:36

Oddities: Get to the Point

Recent Videos in Space
1:34

Oddities: Yearning for a Gurney

Recent Videos in Space
2:05

Oddities: A Heady Bargain

Recent Videos in Space
1:35

Prophets of Science Fiction: Who Was Robert Heinlein

Recent Videos in Space
2:25

Space: Massive Northern and Southern Lights Explained

Recent Videos in Space
2:12

Dark Matters: Missing Cosmonauts

Recent Videos in Space
2:14

Through The Wormhole: A Missing Universe

Recent Videos in Space
1:33

Through The Wormhole: Universe On The Move