Space is getting crowded — humans have now placed over 20,000 satellites into orbit since the start of the space age, and ...

Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

Wilmore and Williams, both ex-Navy pilots and veterans of two previous space missions, flew to the orbital lab in June last ...

NASA’s Butch Wilmore and Suni Williams, whose weeklong Boeing Starliner mission turned into an extended stay in space, are ...

On Episode 152 of This Week In Space, Rod Pyle and Tariq Malik host Dr. Robert O'Brien, Director of the Universities Space ...

If we achieve advanced nuclear, antimatter propulsion or other advance propulsion it would be possible to achieve near ...

Here's how astronauts Butch Wilmore and Suni Williams physically managed to last 10 month at the International Space Station.