Here's when to see a pair of massive letters shining on the lunar surface around May's first quarter moon phase.

Long before the full moon rises, shifting sunlight transforms the lunar surface into one of the sky's best telescope targets.

SpaceX seems to have mistaken shooting for the moon with shooting at the moon. Forecast to occur on Aug. 5, a five-story-long ...

E very now and then on Reddit, somebody asks a fun question that demands an answer. This week it is the turn of user ...

NASA has unveiled early details of its Artemis III mission, which in 2027 could send astronauts to Earth orbit to set the ...

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

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

Neptune's moon Nereid may be the lone survivor of an ancient cataclysmic event, according to new findings from the James Webb ...

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

A Hong Kong astronaut will join a Chinese space mission for the first time as part of a three-person crew launching on Sunday ...

Scientists discover a new fuel-saving route to the Moon that could lower mission costs, improve space travel efficiency, and ...