A rare atmospheric river is hitting a large portion of the Midwestern and Southern U.S. this week, causing significant floods ...

Thunderstorms can generate different types of transient luminous events ... the spectacular display of "red sprites” – an atmospheric phenomenon named after their jellyfish-like appearance.

Here’s what causes this phenomenon ... more about the three types of lunar eclipse and what causes them.) The exact shade of red we see, however, depends on atmospheric conditions.

A new study offer insights into how El Niño events develop, particularly during different phases of the El Niño-Southern Oscillation (ENSO) cycle.

Credit: Don Pettit/NASA NASA astronaut Don Pettit captured breathtaking video of a rare atmospheric phenomenon from his perch high above Earth on the International Space Station. Pettit was able ...