Like HowStuffWorks on Facebook!

Astronauts Training on Earth

Watch this NOVA video podcast to learn more about what it's really like to be an astronaut. It is not all glitz, glamor and zero-gravity. The spacesuit is not very comfortable and astronauts are in them for up to eight hours at a time with no food.


Most Watched in Spaceflight

Most Watched in Spaceflight
4:13

Spaced Out: Sex in Space

Most Watched in Spaceflight
2:59

The Space Shuttle: Docking International Space Station

Most Watched in Spaceflight
2:39

Spacewalkers: EVA Suit Features

Most Watched in Spaceflight
9:35

NASA Explains Space Food Processing

Most Watched in Spaceflight
3:01

The Space Shuttle: Rendezvous Pitch Maneuver

Most Watched in Spaceflight
0:38

Shuttle Landing with a Parachute

Most Watched in Spaceflight
2:51

Destination Mars: Russian Silent Chamber

Most Watched in Spaceflight
2:45

The Space Shuttle: Launch of Shuttle Discovery

Most Watched in Spaceflight
4:19

Spaced Out: Zero Gravity

Most Watched in Spaceflight
5:16

NASA Explains Spacesuits

Most Watched in Spaceflight
2:58

Spacewalkers: Developing the Space

Most Watched in Spaceflight
3:24

Spaced Out: The Human Body in Space


Recent Videos in Spaceflight

Recent Videos in Spaceflight
2:43

Discovery News 2009: 'The Sexiest Spaceship Ever'

Recent Videos in Spaceflight
0:57

Space: NASA Tests Spaceflight Emergency System

Recent Videos in Spaceflight
1:16

Discovery News 2009: Tastiest Space Food

Recent Videos in Spaceflight
1:53

How the Universe Works: Are Black Holes Wormholes?

Recent Videos in Spaceflight
2:03

Destroyed in Seconds: Juno Rocket Explosion

Recent Videos in Spaceflight
3:22

Discovery News: Cool Jobs: Astronaut

Recent Videos in Spaceflight
1:37

Sci-Trek: Constellation Space Program

Recent Videos in Spaceflight
2:25

Sci-Trek: Lunar Colony

Recent Videos in Spaceflight
2:53

G Word: Living Green in Space

Recent Videos in Spaceflight
0:31

Zero Gravity Activity

Recent Videos in Spaceflight
0:42

Astronauts Working on the Shuttle's Exterior 2

Recent Videos in Spaceflight
0:46

Astronauts Get Ready