Space.com

What's Hot This Week Russian Cosmonauts Float Outside Space Station on Spacewalk by Tariq Malik, SPACE.com Managing Editor Cosmonauts Oleg Kononenko and Anton Shkaplerov will prepare the space station for the arrival of a new laboratory. Greetings, Human! Space Robot Shakes Astronaut's Hand, Signs 'Hello' by Tariq Malik, SPACE.com Managing Editor NASA's $2.5 million Robonaut 2 is the first humanoid robot ever to fly in space. Sponsored by: Are Russia's Recent Space Woes a Sign of Larger Problems? Gallery: Space Junk Cleanup by CleanSpace One Satellite