The Grand Canyon is an iconic American landmark—but its origin story may be more complicated than visitors realize. The…
Impact
-
Deep beneath the Atlantic Ocean, the Nadir crater formed around the same time as Chicxulub—the crater left by the asteroid that wiped out the dinosaurs off the edge of the…
-
Researchers have proposed many theories about the Wilkes Land crater in East Antarctica since the 1960s. Only recently, though, have advances in research technology made it possible to see what’s…
-
Global warming is so familiar it’s hard to shock anyone. But few people realize that something as small and harmless-seeming as a tropical fish tank can cause real damage to…