Water on the Devil Comet matches Earth’s, supporting the idea that comet impacts delivered life-giving water to young Earth.

A recent study published in Nature Astronomy has delivered the clearest evidence yet that some comets carried Earth-like ...

The tail end of Perseid meteor shower coincides with a dark new moon and clear skies in Washington tonight, Aug. 22-23.

Astrophysicist Edwin Hubble was offered a staff position at the Mount Wilson Observatory in 1919 by the founder and director ...

Oh! I just saw one!” Stargazers sporadically interrupted their quiet chatter with excited cheering and clapping as they ...

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

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

For centuries, people have wondered where Earth’s vast oceans came from. Our planet didn’t form with much water, yet today it ...

Though the days are fast ticking by, that success is far from assured. DART is the first-ever test of what NASA calls a ...

Astronomers have spotted only three objects known to have come from outside our solar system. The newest, called 3I/ATLAS, is ...

A Harvard scientist has suggested a 'hostile' object coming at us on Earth is an advanced 'mothership' after a warning was ...

Chemical profiling traces the source of water in one of the brightest known comets to keep returning to the Solar System.