Four civilians on a daring SpaceX mission are attempting the first commercial spacewalk
Tech billionaire pulls off first private spacewalk high above Earth
A plan to extract gold from mining waste splits a Colorado town with a legacy of pollution
SpaceX-Polaris crew poised to attempt first private spacewalk
Polaris Dawn crew set for historic spacewalk Thursday
Watch SpaceX Polaris Dawn astronauts conduct 1st private spacewalk early Sept. 12
NASA's Juno probe spots massive new volcano on Jupiter moon Io
New record! 19 people are orbiting Earth right now
