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.
Dust devils are common are common on Earth, but ubiquitous on Mars, a desert world. Scientists are using drones carrying cameras and other instruments to gain new insights.
As you check your local weather forecast today, give a nod to Albert J. Myer, born on this date in 1828, who helped to establish the US National Weather Service.
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.
Could a collision between 2 asteroids millions of miles away cause an ice age on Earth, some 460 million years ago? A new study of earthly rocks and sediments - plus micrometeorites that fell in Antarctica - suggest it's possible.
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.