Astronaut performing spacewalk outside of International Space Station

NASA Completes Milestone 200th ISS Spacewalk

Two NASA astronauts did some maintenance on the International Space Station, including preparations for future commercial crew spacecraft.


0:44SpaceX CEO Elon Musk
Getty Images

SpaceX Successfully Tests Its Biggest Rocket So Far

3:15NASA's Curiosity Mars rover selfie
NASA JPL/Caltech

Why Do We Treat Our Spacecraft Like They're Humans?

1:21Spacesuit being used on a space walk

NASA's New Spacesuit Program Is Way Off Course

1:00NASA's Cassini spacecraft

NASA's Cassini Probe Goes Where No Spacecraft Has Gone Before

0:56Astronaut Peggy Whitson

NASA Astronaut Peggy Whitson Keeps Breaking Space Records

1:21A graphic of the vast number of satellites and debris orbiting Earth.
European Space Agency

The Risk Of Chain-Reaction Collisions Above Earth Is Only Growing

0:32Cygnus spacecraft approaching the International Space Station

NASA Launches Spacecraft Named After John Glenn To Resupply ISS

1:36Engineer stands in front of James Webb telescope's first few mirrors

How Does NASA Transport A Massive $9 Billion Telescope?

1:12NASA's Cassini spacecraft.

Glory And Destruction Await One Of NASA's Most Famous Craft

1:04Richard Branson
Getty Images

Richard Branson Wants To Send People Into Space In 2018

1:13SpaceX's Falcon 9 rocket sits on a launchpad.

SpaceX Hits A Major Milestone On Its Way To Mars

1:08SpaceX rocket launching from launch pad

SpaceX Is Launching A Recycled Rocket

0:42Astronaut conducting spacewalk outside of the International Space Station

Spacewalk Prepares ISS For Commercial Crew

1:38Blue Origin rocket taking off from launch pad
Blue Origin

Move Over, Mars — Everyone Wants To Go To The Moon

1:12SpaceX rocket launch from launch pad
SpaceX / CC0

Don't Wait For SpaceX. You Can Take A Space-cation Now

0:44The SpaceX Falcon Heavy
SpaceX / CC0

People Are Buying Private SpaceX Trips Around The Moon

0:50SpaceX Dragon ship

SpaceX Tried (And Failed) To Dock Its Cargo Pod On The ISS

1:03Astronaut John Glenn in front of the Friendship 7 spacecraft

John Glenn Made History — Without A College Degree

1:31SLS rocket on launch pad

Whether It's To The Moon Or Mars, NASA Wants Astronauts Flying Soon

0:53A SpaceX launch
SpaceX / CC0

NASA's Commercial Crew Flights Are Probably Delayed — Again

The crew of Space Shuttle Columbia
Getty Images

NASA Remembers Fallen Astronauts Of Apollo 1, Challenger, Columbia

1:10An astronaut sleeps on the International Space Station.

NASA's Lighting Experiment May Help Astronauts Finally Get Some Sleep

1:15Flacon 9 rocket launch
Getty Images

After Its Next Launch, SpaceX Will Probably Only Use Reusable Rockets

1:44Gene Cernan in the Lunar Module

Gene Cernan Really Wanted Us To Return To The Moon

0:56An plane flies in front of the moon
Getty Images

This Company Wants To Mine The Moon. Now It Has The Money To Get There

A Falcon 9 rocket on the launchpad

Why Rocket Explosions Aren't Dampening SpaceX's Ambitious Plans

0:33SpaceX CEO Elon Musk talking to reporters.
Getty Images

SpaceX Finally Explains Why Its Rocket Exploded In September

1:20A vulture in front of a space shuttle
Getty Images

How To Keep Birds From Sabotaging The US Space Program

2:25Renderings of crew capsules from SpaceX and Boeing.
SpaceX, Boeing

Wasn't The US Supposed To Launch Astronauts Again In 2017?

1:14U.S. Astronaut Alan Shepard

The Underwear Oversight Of The Early US Space Program