Humans migrated to South America in three distinct waves over the course of thousands of years, a new large-scale analysis…

El Niño is forecast to return as early as May, which could bring above-normal temperatures to almost everywhere on Earth,…

Catastrophic water shortages are in store for the 40 million people living in areas fed by the Colorado River, even…

Eight U.S. East Coast cities are at high or very high risk of “extreme” flood damage based on current scenarios,…

QUICK FACTSName: Thríhnúkagígur, or Three Peaks CraterLocation: Southwest IcelandCoordinates: 63.9984, -21.6989Why it’s incredible: The volcano hosts the world’s only magma…

Building a giant dam between Russia and Alaska might save a key Atlantic current that is crucial to regulating the…

On a hot Saturday in San Antonio over 10 years ago, an 8-year-old boy was rushed to the hospital after…

Listen to this audio excerpt from Peter Rossoni, Orion Artemis II Optical Communications System flight manager: Your browser does not…

This shimmering region of star-formation, a close-up of the Trifid Nebula about 5,000 light-years from Earth, was captured in intricate…

Students in Missouri will hear from NASA astronauts Jessica Meir and Jack Hathaway as they answer prerecorded science, technology, engineering,…