Hell Creek is one of the few places where fossils capture life just before a mass extinction The site contains remains of dinosaurs that lived during Earth’s final moments of the Cretaceous Some layer ...

Dust from asteroid Bennu is revealing a surprising origin story for life’s building blocks. New research suggests some amino acids formed in frozen ice exposed to radiation, not warm liquid water as ...

As more satellite megaconstellations continue to be launched, researchers are exploring the odds people could be struck by falling debris from reentering spacecraft.