U.S. Sens. John Cornyn and Ted Cruz want to relocate space shuttle Discovery to Houston. It will be more challenging than when the shuttle program ended.

On his 70th birthday, America's oldest full-time astronaut touched down back on Earth after spending 220 days on the ...

Coming back to Earth after the weightlessness of space had always been a "significant challenge," Pettit told the press earlier this week at the space agency's Johnson Space Center in Houston.

The new home of NASA's retired space shuttle Endeavour, the Samuel Oschin Air and Space Center, has reached new heights and the California Science Center is celebrating with a "topping off" ceremony.

"Mercury astronaut John Glenn was 77 when he returned to orbit on a short shuttle flight in 1998 ... Pettit said from NASA's Johnson Space Center in Houston. "I didn't look too good because ...

"We're opening the door to new countries, institutions and individuals that can bring new ideas that can really fuel an ...