Her determination eventually led her to join NASA and take a leading role in building the International Space Station through ...

Former NASA officials warn that the U.S. looks poised to lose its self-declared race to beat China to the moon ...

The expansiveness of the universe could make interstellar communication difficult, even for the most advanced civilizations.

As the government shutdown crosses the three-week mark, Democrats are increasingly calling on President Donald Trump to get ...

SpaceX’s delays forced NASA to reopen its moon lander contract. Rivals are circling, Artemis is wobbling, and China’s steady ...

Elon Musk has hammered acting NASA chief Sean Duffy repeatedly on social media over the past few days, calling him "Sean ...

SpaceX chief executive Elon Musk is ratcheting up his high-risk critique of NASA interim administrator Sean Duffy, a member ...

Acting NASA chief Sean Duffy and billionaire Elon Musk on Tuesday traded barbs online over who should lead the space agency, ...

The ISS has been in low orbit above the earth for almost 25 years. It’s played host to astronauts from around the world. But ...

Sean Duffy called out SpaceX for being “behind schedule” on a lunar lander and said he’d explore other options.

NASA acting Administrator Sean Duffy made two television appearances on Monday morning in which he shook up the space ...

Blue Origin, owned by Jeff Bezos, and Lockheed Martin are among the contractors that may compete with Elon Musk’s company in ...