MOLINE, Ill. — Atmospheric conditions came together just right on Wednesday afternoon to produce something we don't see that often here in the Quad Cities: rainbow clouds. Many of you quickly took ...

Photographers have captured breathtaking photos of "rainbow clouds" shining in the clouds. The multi-colored clouds are known as polar stratospheric clouds (PSCs) and look similar to auroras blazing ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The universe is huge, yet astronomers have looked at a few parts of ...

A thick sphere of icy debris known as the Oort cloud shrouds the solar system. Other star systems may harbor similar icy reservoirs, and those clouds may be visible in the universe’s oldest light, ...

From UFO-like rings and whirlpools of light to rainbow clouds and laser lines, here are 10 strange visual phenomena that can be easily explained by science. When you purchase through links on our site ...

A truly dark night sky is getting harder and harder to find. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When I was a young boy growing up in ...

Clouds in the sky may seem like a gentle cotton in the air but they are actually made of millions of tiny water droplets or ice crystals. Despite their delicate appearance, clouds can weigh hundreds ...

Traditional methods of studying dark clouds study the emission spectra of the molecules that make up the clouds. However, the signal of the main constituent of the clouds, hydrogen molecules, are very ...