Previously excavated bodies of two ritually sacrificed Inca children, including this girl still wearing a ceremonial headdress, have yielded chemical clues to a beverage that may have been used to calm them in the days or weeks before being killed. The discovery...

A volcano erupts (blue) on Jupiter’s innermost moon, Io, in this picture from NASA’s Galileo spacecraft. JPL/NASA, DLR By Nikk Ogasa December 22, 2022 at 9:00 am CHICAGO — An entire ocean of liquid magma, or maybe a hot heart of solid metal, may lurk in Io’s...

A sign on the 110 freeway in Los Angeles warns drivers of extreme heat and urges energy conservation during a heat wave that baked the western United States in September. Patrick T. Fallon/AFP/Getty Images By Carolyn Gramling December 22, 2022 at 1:58 pm It was...

This sleeping female glass frog tucks away most of her red blood cells while she sleeps. Her eggs are visible within her transparent ovaries. Jesse Delia By Susan Milius December 22, 2022 at 2:56 pm As tiny glass frogs fall asleep for the day, they take almost 90...

The composition of exoplanet GJ 1214b (illustrated) has vexed astronomers since its 2009 discovery. Using the James Webb Space Telescope to observe the planet could provide answers. L. Calçada/ESO By Lisa Grossman 1 hour ago BALTIMORE — When the James Webb Space...