When a thunderstorm recently lit up the night sky, cameras captured towering red shapes that looked uncannily like glowing jellyfish hanging above the clouds. The images raced across social media, and ...

“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 ...

Giant red blobs, picket fences, upward branching carrots, and tentacled octopi - these are just a few of the phrases used to describe sprites - spectacular, eerie flashes of colored light high above ...