Physicists have proposed a new model of space-time that may provide the 'first observational evidence supporting string ...

Learn how gravity and mass are pulling two stars into tighter, faster orbit around each other, with an explosive collision ...

Could a reactionless, gravity-defying propulsion system actually work? A former NASA engineer says yes, but scientists are ...

Needham native and astronaut Sunita Williams, along with fellow astronaut Butch Wilmore, spoke Monday for the first time ...

Butch Wilmore and Suni Williams have stunned the world with their rapid recovery - after just two weeks back in Earth's ...

Nearly two weeks after returning from a nine-month stay in space, NASA astronauts Butch Wilmore and Suni Williams are ...