.@Princeton paleontology and geology professor Gerta Keller, PhD '78, has been sparring with proponents of the asteroid-impact theory for decades. "It’s thanks to her that the case is not closed," says one collaborator.https://stanford.io/2MDFipU
0 replies
4 retweets
30 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.