The explosive Hunga Tonga-Hunga Ha'apai volcanic event spewed so much moisture that it increased the global average of atmospheric water vapor by 5%.
Hurricane Katrina was the most expensive hurricane in history, while a 1780 storm killed the most people of any hurricane.
An astronaut's photo of Mount Ruapehu, the real-life "Mount Doom" volcano, shows the contrast between the hydrothermal lake at its summit and the snow surrounding its peak.
"Alien goldfish" from the Carboniferous had toothy tongue-like structures that resembled those in living mollusks, a new study finds.
Authorities have linked the discovery of a foot inside a shoe to a previously unreported death in Yellowstone National Park on July 31.