Have you ever wondered how clouds stay in the sky? Here's your answer, and by the way, the weight of an actual cloud might ...

Social media users were perplexed by unusual sighting in the viral video, with one saying "genuinely what is this." ...

Flying at night obscures star visibility due to cabin lights and ground light pollution. Bright interior lighting creates a ...

Red sprites seen above the Himalayas reveal powerful storms, rare upper-atmosphere events, and atmospheric mysteries ...

The aurora borealis has jumped to the top of many travelers' wish lists, creating a tourism boom in the northernmost reaches ...

While sky gazers look forward to the next astronomical phenomenon, everyone looks up to the heavens for the March 29 Solar ...

"The rocket's frozen exhaust plume appears to be spinning in the atmosphere and reflecting the sunlight, causing it to appear ...

The entirety of North and Central America, and much of South America, will experience a total lunar eclipse in the overnight ...

A NASA graphic shows how a total lunar eclipse occurs.

A bit more sunshine Friday and a bit cool with highs in the upper 50s to low 60s. RELATED: Here's what to know about this ...