Two US astronauts floated outside the International Space Station on Tuesday for a seven-hour, 24-minute spacewalk to repair the orbiting outpost's aging robotic arm, NASA said.
7 hours ago in Space Exploration
Spacewalking astronauts gave a hand to the International Space Station's big robot arm Tuesday.
14 hours ago in Space Exploration
Meet the Aussies behind a virtual reality application that is really out of this world.
14 hours ago in Software