Friday in D.C. occupied a special spot between May Day and Derby Day, and seemed to rise to the atmospheric occasion. It ...

The Aquarids, a meteor shower famous for its speedy balls of space debris that streak across the night sky, is peaking soon.

At 300 light-years away, the interstellar cloud is the closest of its kind ever found to Earth and the largest apparent single structure in the sky.

The Aquarids – sometimes spelled as "Aquariids" – first became active April 19 and are due to peak between May 5 and May 6.

Catch some morning meteors, see the Moon reach First Quarter, and watch Mars visit the Beehive in the sky this week.

Known for their speed, the Eta Aquarids are icy, rocky debris that’s been shed from the nucleus of Halley’s Comet each time ...

Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of ...

The cloud, named Eos after the Greek goddess of dawn, had eluded researchers because it contains very little carbon monoxide ...

The Aquarids – sometimes spelled as "Aquariids" – first became active April 19 and are due to peak between May 5 and May 6.

Want to see a shooting star? ETA Aquarids meteor shower becomes most active around May each year as Earth passes through ...

May’s night sky is packed with astronomical events—find out when and where to look for meteor showers, ancient star clusters, ...

An invisible molecular cloud that could shed light on how stars and planets form has been detected surprisingly close to ...