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 Voyager 1 probe swaps thrusters in tricky fix as it flies through interstellar space
NASA's Juno probe spots massive new volcano on Jupiter moon Io
Giant bubbles on the surface of a nearby star preview the fate of our sun
Russia launches NASA astronaut and 2 cosmonauts to space station
