Tonight marks the First Quarter Moon, when roughly half of the Moon’s visible face is illuminated. As of Saturday, May 23, ...

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

Astrolab's FLIP rover, launching from Kennedy Space Center this year, will carry NASA science and tech to the moon, all in ...

The route is not built for speed. During Artemis 2, the Orion spacecraft followed a roughly 10-day free-return path, flying ...

Bryson DeChambeau says he doesn't think the famous moon landing footage is real but trusts Elon Musk's word that the US did ...

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

This goes against the previous theory, which has long suggested that Nereid is actually an object captured from the Kuiper ...

Nuclear power plants are safer than many suspect. But putting reactors in space is a concept with a checkered history. One ...

A study suggests that the ice giant's largest moon, Triton, made a dramatic entrance to the Neptunian system long ago, ...

NASA’s moon exploration plans call for nearly 80 launches, nearly 75 landers, 10 moon buggies and one nuclear reactor ...

The Moon landing conspiracies are very much alive, but the new generation of astronauts are handling them with less drama.

Neptune’s moons have long provided evidence of a cataclysm four billion years ago. A new study suggests one moon may have ...