The Arctic’s frozen waters have entered a radically new state.
A new study identifies a likely ancestor to all placental mammals.
Human ancestry informs the study of modern diseases.
Bones reveal that ancient human relatives were part-time tree dwellers.
How a deep-drilling experiment is fighting climate change.
A river valley found on a distant moon resembles Earth’s Nile.
A short-nosed bat bests its nectar-drinking cousin at pollination.
A web program creates disease maps to track epidemics.
A giant hole in the dust disk around a star could hold multiple planets.
DNA evidence identifies the world’s rarest whale.
Paying attention stimulates brain cells that improve memory.
Students partner with NASA to direct cameras orbiting the Moon.
City-dwelling coyotes in the United States choose lifelong partners.
An enormous telescope observes the Universe's oldest light.
An enormous galaxy cluster is birthing stars at a furious pace.
Fossils explain where and when close relatives in our family tree coexisted.
Scientists reconstruct the environments of our primate ancestors.
A submersible microscope reveals plankton behavior.
As habitats shift, connections are key for climate-sensitive species.
Scientists seek cures for disease in underground microbes.
NASA’s mission control guided Curiosity to a perfect landing in Gale Crater.
Our health depends on trillions of microbes living in our bodies.
Have black widow spiders lost their bite?
Sky-gazers caught a rare glimpse of Venus framed by the Sun.
Mysterious, tiny goblin spiders get a census.
Fossil gives a heads-up on the origin of flexible infant skulls.
Scientists analyze ancient glaciers to understand climate change today.
Cephalopods turn skin patterns on and off to fool predators.
A superbug’s resistance is linked to antibiotics in livestock feed.
The first private mission visits the International Space Station.
The Space Shuttle Enterprise took a final flight on the way to its new home in NYC.
Twitter provided real-time data on a cholera outbreak in Haiti.
Nicotine-related pesticides may be responsible for bee population decline.
An Ohio research lab helps save rhinos mutilated by poachers.
NASA’s Dawn spacecraft captures detailed images of a giant asteroid’s alien landscape.
A distinctive croak heralded a new species of frog in New York.
Drought stressed the groundwater stores of the southern United States in 2011 and 2012.
Infrared data from two telescopes combine to expose rapid growth of infant stars.
A keen sense of smell may have given humans an edge in brain development.
Fire ants play a care-giving role for butterfly larvae.
NASA's airborne observatory captures views unmatched by ground telescopes.
Recent finds add to a growing list of nearby Earth-like planets.
Beetle predators consider nutrition when choosing their prey.
Twin satellites investigate the lunar surface and structure.
In the worldwide wildlife trade, public health risks run high.
Scientists observe dolphins and whales at play in Hawaiian waters.
Curiosity rover launched on November 26, beginning its long journey to Mars.
Conservation efforts lead scarlet macaws toward a comeback in Guatemala.
As the seasons come and go, plant life and carbon change on Earth.
Ancient fossils suggest modern humans populated Europe earlier than once thought.