Magnetic crystals provide the earliest evidence yet of the plate tectonics that likely made Earth habitable, pushing its start back by 140 million years.

Data suggest people lived at Chile’s Monte Verde site thousands of years later than thought, challenging key “pre-Clovis” evidence. Not all agree.

Microbes play a crucial role in maintaining the levels of many nutrients in our environment, but warming could disrupt their function in certain cycles.

Nearly one third of sharks studied near the Bahamas’ Eleuthera Island were found to have caffeine, painkillers and other ...

Seemingly random charging of identical materials depends on the carbonaceous molecules stuck to their surfaces ...

Satellite data show that U.S. cities have more nighttime cloud cover than nearby countryside, and building height and density ...

Snowpiercer, a graphic novel, movie and TV series, imagines a different deep-freeze scenario: Geoengineering gone haywire. To mitigate global warming, scientists released aerosols into the atmosphere ...

A colony of African vervets in Dania Beach raises big questions about how humans can and should manage nonnative species.

When combined with clinical markers, smartwatch data was able to help detect insulin resistance with nearly 90 percent ...

Platypuses are the first mammals known to have hollow melanosomes, pigment-bearing structures found in the hair of many animals.

Superluminous supernovas are the brightest stellar explosions in the universe. Astronomers may have found a mechanism that ...

Each year, thousands of people in the U.S. die waiting for donated organs. A new book shares how organs from other species could change that.