Astronomers measure how fast a black hole spins.
A new study identifies a likely ancestor to all placental mammals.
Scientists are using human ancestry to study modern diseases.
Bones reveal that ancient human relatives were part-time tree dwellers.
A river valley found on a distant moon resembles Earth’s Nile.
Supramap creates disease maps to track the evolution of epidemics.
A short-nosed bat bests its nectar-drinking cousin at pollination.
|A giant hole in the dust disk around a star could hold multiple planets.|
DNA evidence identifies the world’s rarest whale.
Watch Tropical Cyclone Sandy evolve in NOAA satellite data.