The Australian bees of genus Tetragonula produce strange, spiral nests. Scientists think they know why. In a world of bland hexagonal honeycombs, a small group of rebellious Australian bees has chosen to build spiral staircases. Meet the bees of the…
Archaeologists found the remains of a basalt slab floor from the Aztec palace. The remains of an Aztec palace where emperor Moctezuma II was held captive by the Spanish and killed in 1520 has been discovered in Mexico City. Historical…
Archaeologists explore the vast Chiquihuite Cave in the Chiapas Highlands of northwest Mexico. The early inhabitants of North America left behind precious few clues of their existence — a footprint here, a weapon and a mummy there — leading scientists…
A 7.8-magnitude earthquake struck off the Alaskan coast on July 22, 2020. A powerful 7.8-magnitude earthquake struck off the coast of Alaska, south of the Aleutian Islands, Tuesday night (July 21) local time, prompting fear of a tsunami, the U.S.…
An artist’s illustration shows how craters on the moon preserve evidence of its violent past. About 800 million years ago, a flurry of small asteroids slammed into the moon, pocking the lunar surface with clusters of craters. But the moon…
Since day one of the coronavirus pandemic, the U.S. has not had enough tests. Faced with this shortage, medical professionals used what tests they had on people with the worst symptoms or whose occupations put them at high risk for…