A second asteroid may have crashed into Earth as the dinosaurs died
A plateau of shallow ocean was left off Guinea's west coast as a result of the Jurassic Ocean's creation by the separation of Africa and South America. According to Uisdean Nicholson, a marine geologist at Heriot-Watt University in Scotland who researches the area to learn about the formation of the Atlantic, "all the layers are quite flat, almost like a layer cake." How to stream live From preparation to launch, the NASA Artemis mission Thus, in 2017, while Nicholson was reviewing seismic readings of the area made by oil and gas development vessels, a surprising feature—a 5-mile-wide dimple hidden deep in the cake—jumped out. The site is thought to be the crater from a meteor that was as wide as the Eiffel Tower was tall, according to a closer examination of the location led by Nicholson and published today in the journal Science Advances. It would have struck Earth within a million years of the Chicxulub meteor that wiped off the dinosaurs, if it is determined to be...