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Astronomers hope the Proba-3 mission will help them get a better view of the corona, the sun's outer atmosphere, which is even hotter than the sun's surface.

Early interactions with the Earth may have heated up the Moon and caused it to remelt, producing new lunar rocks and erasing old craters.

Scientists are using the Mojave Desert to test robots for the next space age.

The annual Geminid meteor show is happening now, with activity hitting its peak late Friday into Saturday morning. NASA is calling for 120 meteors per hour.

The Geminids are one of the best and most visible annual meteor showers, when at least 120 meteors can usually be seen per hour. But 2024 will be different, thanks to the year's final full moon.

The mission to take four astronauts on a trip around the moon and back, previously targeting a launch at the end of 2025, has been delayed until at least April, 2026.

Earlier this year, Isaacman became the first private citizen to conduct a spacewalk. But his longstanding ties with Elon Musk's company SpaceX raise possible conflicts of interest.

NPR's A Martinez talks to Emily Calandrelli, the 100th woman to venture into space. She took a ride aboard a spaceship from Jeff Bezos' aerospace company Blue Origin.

SpaceX launched its Starship spacecraft for the sixth time. President-elect Trump and Elon Musk were in attendance.

Are UFOs real? Maybe, but that's not the point. From Congressional hearings on UFOs to the claims of RFK Jr., conspiracies have gone from fringe to mainstream political talking points. Authors Kelly Weill and Mike Rothschild join the show to explain ...