While global warming is nothing to laugh at, an Australian company is providing some comic relief, selling carbon credits for flatulent pets and people.
Evolution has gotten faster, and scientists think they know why: Microbes are swapping DNA from one species to another, giving the Darwinian process an added boost.
Twin NASA spacecraft have beamed back spectacular views of the sun, helping scientists track violent solar storms that can fry satellites and overload power lines on Earth.
Thirteen 2,300-year-old towers precisely spaced along a ridge near a ceremonial site make up the oldest known solar observatory in the New World, experts say.
Ice caps are melting on both Earth and Mars. According to one researcher's controversial theory, this suggests that global warming has nothing to do with humankind.
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.
