White stuff on Mars is water ice, Phoenix team confirms.

Past abrupt climate change in the North Atlantic could have started as far south as China, scientists say.

A new technique combining antibodies, carbon nanotubes and near-infrared light holds promise for treating malignancies, scientists report.

Phoenix Lander gets first close-up of Martian soil.

Another null result for gravitational waves. But findings from LIGO still reveal new information about the Crab Pulsar.

Instrument succeeds in capturing first soil sample, allowing Mars Phoenix Lander team to begin scientific studies.

Pluto and its dwarf planet neighbors are christened plutoids, the International Astronomical Union rules.

The herbal remedy St. John’s Wort may not treat ADHD, a new study shows

Woolly mammoths roamed Siberia in two distinct clans, and the split between the groups, scientists say, is surprisingly deep, occurring more than 1 million years ago.

The Phoenix Lander's robotic arm scoops its first experimental sample, and scientists prepare to start their scientific studies on the Martian soil.

New photos of collisions in one of Saturn’s rings provide a local lab for understanding the interactions that might shape young solar system formation.

In its seventh day after successfully landing on the Red Planet, the Phoenix Lander digs its first trench and is ready to start its ice-hunting.

Water believed to flow on the Red Planet would have been too salty to foster life, scientists suggest.

Perhaps Alfred Nobel has met his match. Or at least his coveted prize may have. Today, the Norwegian Academy of Science and Letters announced its inaugural Kavli Prize laureates, named in honor of Fred Kavli. "The Kavli Prizes were created to recognize achievements in three exceptionally exciting fields, which we believe promise remarkable future discoveries and benefits for humanity in the 21st century and beyond," Kavli said today during a ceremony announcing the winners. Earning a medal, a scroll and a cash award of $1 million for each of the disciplines, the scientists were recognized f...