Scientists drilled into the Chixclub crater in the Gulf of Mexico to learn more about the end of the mesozoic era. They learned more than they expected, reports Katherine Kornei in The New York Times.
The first day of the Cenozoic was peppered with cataclysms. When the asteroid struck, it temporarily carved a hole 60 miles across and 20 miles deep. The impact triggered a tsunami moving away from the crater. It also catapulted rock into the upper atmosphere and beyond.
“Almost certainly some of the material would have reached the Moon,” Dr. Gulick said.
The largest pieces of debris rained back down to Earth within minutes, Dr. Gulick and his team say, pelting the scarred landscape with solidifying rock. Smaller particles lingered for longer periods, and glassy blobs known as tektites, formed when falling, molten rock cools, have been found across North America and dated to the Chicxulub impact. Within about 30 minutes, ocean water began to flood back into the crater through a gap in its northeastern rim, the researchers suggest.
Thirty years ago today, the Voyager 1 spaceprobe had completed its ncounters with the outer planets and was careening out of our solar system. The time came to shut off the probes’ cameras to preserve power and memory for the other onboard scientific instruments. But before engineers flipped the switch, one last photo opportunity was […]
While scientists have studied Moon rocks for 50 years, researchers have for the first time conducted deep analysis on a single grain of lunar dust, atom by atom. Using a common materials science technique called atom probe tomography that’s not widely used by geologists, the Chicago Field Museum’s Jennika Greer and colleagues probed the grain […]
This is so amazing. Watch what happens when a blacksmithing anvil is lowered into a large vat of pure liquid mercury. Update: One of our readers posted the link to the original video in the comments. I have replaced the animated GIF. Thanks, Crispy75. [H/t Alberto Gaitán via Bryce Lynch] Image: Screengrab from GIF
You kill it at the gym all week, your nutrition is dialed in, and you’re drinking so much water that your spare time is spent walking back and forth to the bathroom (way to get those steps in!)—so how do you take things to the next level? By focusing on recovery. A proper post-workout routine, […]
Everybody wears socks, even presidents, but not everybody wears sophisticated, ultra-comfortable socks made with bamboo yarn that offers softness, ventilation, and durability. So with all these DeadSoxy socks on sale for Presidents’ Day, why not use this opportunity to make those hard-working feet of yours happier than they’ve ever been? With styles for work and […]
If you’re looking to read more in 2020, you probably wish you had more time to get that done. Well, we can’t create more hours in the day (we’re mad about it too), but we can help you maximize those hours. Catch up on that book list and get ahead of the game when you […]