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

Four astronauts, including NASA astronauts Butch Wilmore and Suni Williams, made a splash landing off the Florida coast ...

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

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

As astronaut Sunita Williams finally heads back to Earth after more than nine months in space, her hometown in Needham is ...

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

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

Nuclear pulse propulsion is a technology that would work. It was being developed in the 1960s but it was stopped because of ...

Two NASA astronauts have splashed down off the Florida coast after a marathon mission that started with a bungled Boeing test ...

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

If Suni Williams and Butch Wilmore depart on schedule, they will have have spent more nearly 10 months in space, but it's not ...

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