U.S. Air Force Major and NASA astronaut Nichole Rhea Ayers made an extraordinary discovery while orbiting the Earth aboard ...

NASA astronaut Nichole Ayers photographed a rare atmospheric phenomenon over the US and Mexico known as a "sprite" that's ...

U.S. astronaut Nichole "Vapor" Ayers captured a spectacular view of a phenomenon known as a "sprite" blazing to life above an ...

'Giant Wave' Observed in Portugal by Beachgoers Is Nothing but 'Rare' Atmospheric Phenomenon, Experts Claim Beachgoers in Portugal were stunned by a scene they witnessed near the sea on Sunday ...

What is a heat dome? A heat dome is a meteorological phenomenon produced when a large area of high pressure in the atmosphere forms a ridge over a region and stays there for days or even weeks.

A meteor is a visible atmospheric phenomenon that results from the meteor's swift entry and disintegration, meaning it is not a physical object.

A meteor is a visible atmospheric phenomenon that results from the meteor's swift entry and disintegration, meaning it is not a physical object. What is a fireball?

An intense and nearly historic weather pattern is cooking much of America under a dangerous heat dome this week with triple-digit temperatures in places that haven't been so hot in more than a decade.