Jupiter joins Mercury in early twilight as Mars lingers with Leo after dark. Saturn is visible in the morning, meeting ...

A passing star has been discovered that could cause chaos in the Solar System, sending Earth flying out of orbit.

"This Voyager spacecraft was constructed by the United States of America. We are a community of 240 million human beings ...

When people think of meteor showers, they often picture themselves reclining under a star-filled sky and watching fleeting ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On June 3, 1965, NASA astronaut Ed White became the first American to walk in space. White ...