Mining on Earth is a complicated, messy business with a lot of environmental impact to obtain a small ... and from then into deep space. Just going to deep space would be history-making for ...

Controllers broke into applause after hearing of the success. The agency's EPOXI Deep Impact spacecraft was expected to use two imagers and an infrared instrument to acquire data about a tiny ...

NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come ...

We model the thermal evolution and activity of comet 9P/Tempel 1, in anticipation of the Deep Impact mission encounter with the comet. We also investigate the possible outcome of a projectile impact, ...

Bone and muscle deterioration, radiation exposure, vision impairment—these are just a few of the challenges space travelers face on long-duration missions, even before considering the psychological ...