The Asteroid That Wiped Out the Dinosaurs May Have Had a 'Little Sister'

The ocean floor is famously less explored than the surface of Mars. And when our team of scientists recently mapped the seabed, and ancient sediments beneath, we discovered what looks like an asteroid impact crater. Intriguingly, the crater, named "Nadir" after the nearby volcano Nadir Seamount, is of the same age as the Chicxulub impact […]