European adults weren't able to digest calcium-rich, high-energy milk until after they took up dairy farming, scientists report, solving a long-standing dilemma about the origin of the trait.
Japanese scientists have generated new teeth and whiskers in mice using just a handful of embryonic cells—a key development in the quest to grow replacement organs for humans.
Without a trace, something is causing bees to vanish by the thousands. But a new task force hopes to finger the culprit and save the valuable crops that rely on the insects.
The distinctive culture that arrived via a land bridge between Asia and Alaska were not the first people in the New World, new radiocarbon analysis suggests.
Four large lakes found at the start of a rapidly moving ice stream offer the first direct link between the under-ice bodies of water and the rate at which ice flows into the ocean.
At NASA's planned lunar base, the first residents may mine the surface, build telescope arrays, and perform on TV. But first they'll have to learn how to walk.
New proposals to defend Earth from cataclysmic impacts range from a tugboat-like spaceship to arrays of giant scopes that can better scan the skies, scientists said today.
A large network of waterways helps carry ice from the center of Antarctica to the ocean, scientists say, in a finding that may help clarify how global warming will affect the world's sea levels.
Mysterious deep-sea giants that use their bioluminescent arms to dazzle and catch prey have been filmed for the first time ever in the wild. With videos.
The recently hobbled space telescope is still proving its mettle, capturing a colorful image of a white dwarf's "last hurrah" with its remaining camera.
