Eos, a newly discovered hydrogen cloud just 300 light-years from Earth, offers a rare look at hidden star-forming regions.

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 discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at ...

Molecular clouds are composed of gas and dust and serve a vital purpose in star formation. Eos, a crescent-shaped gas cloud, is located about 300 light years away from Earth and is the size of 40 ...

NORMAN, Okla. – Thunderstorms above Oklahoma sculpted a seldom-seen spectacle in the sky Friday morning. The formation of a horseshoe vortex cloud was witnessed in Norman by storm chaser Connor ...

Unusual cloud formations—rippled, twisted, and glowing—are appearing more frequently, sparking curiosity and concern. Experts ...

The event is set to unfold before daybreak on Friday, April 25, giving early risers across North America their best chance to catch the rare celestial gathering. The crescent moon is expected to act ...

Asperitas clouds are a distinctive, but relatively rare cloud formation that takes the appearance of rippling waves. These wave-like structures form on the underside of the cloud to make it look ...

To observe the rare event, which lasted about an hour ... This allows us to study cloud formation, storms, and wind patterns without the extra variables and effects a surface produces, which ...

The cloud, composed of either water ice or carbon ... These structures, composed of ice and gas, are located in a region where star formation is rare. Despite early detections dating back to ...