Commander Jared Isaacman and mission specialist Sarah Gillis each spent a few minutes outside the Dragon capsule, performing ...

Royal Observatory Greenwich’s Astronomy Photographer of the Year winners announced including nebulae, skyscapes, and more.

Aged 69, the chemical engineer has already spent more than a year in space. And he’s far from the oldest person to fly beyond ...

New observations show the bubbling surface of the red giant star R Doradus, a feat previously only achievable with the Sun.

Starliner has returned to Earth without a crew. A former astronaut details what it means for NASA, Boeing, and the astronauts still in space.

The gargantuan rocket’s fifth test flight will attempt a complex booster ‘catch’ maneuver, but not for at least a few months.

Space travel comes with risk − and SpaceX’s Polaris Dawn mission will push the envelope further than any private mission has ...

A National Academies committee says the space agency is prioritizing short-term wins and commercial arrangements over the ...

Dead satellites still pose a threat to future space missions — and the problem is only getting worse. Here's what we might do ...

Launch pads, however, are often overlooked even by spaceflight afficionados. Still, without a well-designed and properly ...

The Owl Cluster, also known as NGC 457, is an open cluster in the constellation Cassiopeia. You can’t see it without optical ...

A photon traveling through the curved space-time near a black hole isn't so much pulled as falls into the the black hole.