Dive into the world of the ocean’s most feared creatures as we reveal the five most dangerous jellyfish on Earth from the nearly invisible Irukandji to the infamous box jellyfish. Learn what makes ...

Sprites “are transient luminous events” that “are triggered by intense electrical activity in the thunderstorms,” astronaut ...

While certain jellyfish are more common, sometimes a stray shows up. For example, recently lion’s mane jellyfish, which pack ...

NASA astronaut Nichole Ayers captured an electrifying image of a giant lightning "sprite" shooting up over Mexico and ...