Researchers have identified fossil remains as belonging to rauisuchians, predatory crocodile-like animals that fed on early dinosaurs and mammal relatives 210 million years ago.

Arctic sea ice likely reached its smallest extent for 2019 on September 18. At 1.6 million square miles (4.15 million square km), that minimum is now in a 3-way tie for 2nd-smallest in the satellite record.

Thanks to 2019's record drought in Europe, a 7,000-year-old circle of 150 upright stones is back on dry land in western Spain, after 50 years underwater.

Two beautiful fogbow photos taken in September

June through August 2019 was the Northern Hemisphere’s hottest summer on record, tied with 2016. Meanwhile, in the Southern Hemisphere, the same period marked the 2nd-warmest winter in the 140-year record.

Last month, rafts of pumice, spewed from an undersea volcano and spanning an area about the size of Washington, D.C., appeared in the South Pacific.

A new study that analyzed rock from deep within the Chicxulub impact crater helps reveal what happened within the first 24 hours after the asteroid impact that doomed the dinosaurs.

Safety guidelines for taking photos of the sun.

Astronomers now call recently-discovered flares from supermassive black holes in distant galaxies quasi-periodic eruptions. "Giant black holes regularly flicker like a candle but the rapid, repeating changes seen in GSN 069 from December onwards are something completely new," said one scientist.

A new study has found that plastic pollution is being deposited into the fossil record, with deposits increasing exponentially since 1945.