A little over 240 years ago, birds were the only things that could fly above the ground untethered without eventually falling ...

The Rho Ophiuchi nebula system is the closest star-forming region to Earth, and as such has come under the scrutiny of both ...

As the night skies of May unfold, there’s a wealth of celestial events to witness, from the waxing Moon to the prominent ...

Forecasters said a recent coronal mass ejection and high-speed winds from a spot on the sun’s surface may disrupt Earth’s ...

Eta Aquarid meteors and northern lights will peak tonight, offering skywatchers across the US a rare celestial show.

The Aquarids meteor shower is set to peak this week. Everyone in the U.S. will have a chance to catch a glimpse.

The first image of the whole Earth from space came in 1972, when astronauts Ron Evans or Harrison Schmitt took a photo from ...

A giant impact crater on the moon may contain primordial pieces of the lunar mantle and remnants of an ancient magma ocean, ...

A Kp index of five was recorded Sunday night and early Monday after “isolated periods” of geomagnetic storms created by ...

The Eta Aquarid meteor shower is known for its fast fireballs, which occur as Earth passes through the rubble left by ...

Mars starts May not far from the Beehive star cluster, Venus is unmistakable in the predawn sky, and Mercury looks best early ...

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