Our Milky Way is one of more than 100 galaxies bound together by gravity.

Today in the history of astronomy, NASA announces our first view of the rings of Neptune.

A Black Moon leaves the skies dark for deep-sky observing, then a waxing crescent moves through Virgo and hangs with Mars.

Although faint, Comet Wierzchoś can be picked up by larger scopes as it passes near the planetary nebula NGC 6058 this ...

Targeted SETI approach listens for alien radio 'spillover' during planetary alignments, using Earth's deep space ...