Dinosaurs might have been wiped out by a comet instead of an asteroid, a new study says.
원문출처 : https://www.cnn.com/2021/02/17/world/dinosaur-extinction-comet-study-scn/index.html
원문출처 : https://www.cnn.com/2021/02/17/world/dinosaur-extinction-comet-study-scn/index.html