Speeding around the Earth at 28,000 km/h, NASA astronaut Nichole Ayers captured an incredible view of a phenomenon known as a red sprite. Here's the science behind this 'transient luminous event'.

“As we went over Mexico and the U.S. this morning, I caught this sprite,” the former collegiate volleyball player said Ayers is aboard the International Space Station as pilot of SpaceX Dragon’s ...

Striking images of bright “ red jellyfish ” appearing in the sky above storm clouds have sparked a wave of speculation online, with some social media users even floating theories about alien activity.

A rare and visually stunning electrical phenomenon lit up the skies over North America earlier this week, as NASA astronaut Nichole Ayers captured a dramatic image of a giant red lightning sprite from ...