Add Yahoo as a preferred source to see more of our stories on Google. Nasa needs a new vomit comet services from a contractor. For NASA astronauts, experiencing zero-gravity conditions prior to ...

The KC-135 Stratotanker, in service since 1956, remains a key US refueling aircraft and supported decades of NASA research and global operations.

HOUSTON, Texas -- Fifty years ago, Apollo 11 successfully landed on the moon, marking a historic moment for NASA and Houston. As we celebrate the anniversary, the space agency is releasing never ...