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

We got a big update about NASA's moon strategy in late March, just a week before Artemis 2 lifted off. In that news drop, the ...

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

By Laurie Chen JIUQUAN, China, May 24 (Reuters) - China will send an astronaut to its space station on Sunday for a year, a ...

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

China will send an astronaut to its space station on Sunday for a year, a record length for the country, enabling the study ...

Neptune has only been visited by one spacecraft, NASA’s Voyager 2 in 1989. Nereid was discovered 40 years earlier by Dutch ...

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

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

Stupid question, but …” is a weekly column answering the not-so-stupid questions that, at this point, we’re all too afraid to ...

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

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