New, miniscule fossils of the earliest-known relative of all primates, including humans, Purgatorius, have been unearthed in a more southern region of North America than ever before – and the ...

"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

UC College of Arts and Sciences Professor Thomas Algeo has been studying the planet's five major mass extinctions since the ...

A fossil that would fit on a baby’s fingertip has revealed fresh clues about the evolution of the earliest-known relative of ...

A sediment-washing “bubbler” helped researchers recover 65.5-million-year-old teeth that illuminate how early primate ...

Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all ...

Learn how newly discovered Purgatorius fossils in Colorado’s Denver Basin are filling gaps in the Paleocene fossil record and ...

Being able to spot the Earth, let alone any signs of life on our planet, would require an enormous telescope from 66 million ...

The next asteroid won’t come with a warning siren. What happens after it’s discovered could determine everything.

The idea that extreme climate change could one day cause a mass extinction and end the human dominance is not as farfetched ...

Space is a busy place, filled with celestial objects bumping around. They’re always out there but from time to time get our attention more than others, and we seem to be in such a time, with the ...

The rebound in beaten-down software was less about fresh conviction than about a mechanical reflex. Traders who sold the ...