Guatemalan authorities evacuated around 1,000 people Monday after Central America's most active volcano erupted, spewing lava, ash and rocks.
By night, however, the eruption was declared over, and evacuees were allowed to begin returning to their homes.
Residents...
A team of anthropologists and evolutionary biologists affiliated with several academic institutions in the U.S., working with a colleague from the Smithsonian Institution, has found evidence of humans domesticating avocados as far back as 7,500 years...
Scientists investigating the underside of the world's largest ice sheet in East Antarctica have discovered a city-size lake whose sediments might contain a history...
