Bringing forward the return of Butch Wilmore and Suni Williams would leave just a single astronaut operating the US portion of the International Space Station.
The 1,100-pound mystery object landed in Kenya at the end of December. Experts are still baffled.
NASA has plans to return humans to the moon with the Artemis mission—but Elon Musk’s preference for Mars could have influence in the Trump administration.
The Trump transition team is looking for “big changes” at NASA—including some cuts.
On Christmas Eve, NASA's fastest-moving probe will come closer than ever to the surface of the sun.
The SpaceX rocket will launch during the late afternoon so its descent into the Indian Ocean is visible.
A NASA inspector general report gives new details on a leak that has plagued the ISS for five years, and reveals that the agency considers it the highest-level risk.
The most ambitious private spaceflight to date was a total success—and it blazed a trail for others to follow.
New documents show the company has grand plans for its Boca Chica launch site, providing more evidence that Elon Musk is bullish on SpaceX's future there.
Mike Pence promised to land on the moon in 2024, but that’s fallen out of reach. So what now?