May 16, 2013 Scientists have discovered water that was sealed in Canadian bedrock for nearly half of Earth's history. It may contain the descendants of ancient microbes. The discovery could give scientists new insights into early life on Earth and inform the search for life on other planets.
May 15, 2013 The mission launched in 2009 to hunt for Earth-like planets circling distant stars may be coming to an end because of a faulty part in the space telescope.
May 15, 2013 After decades of trying, scientists say they've finally figured out how to make personalized embryonic stem cells. One day, these designer cells may help treat an array of diseases. A jolt of caffeine and and a little electric shock helped to do the trick.
May 15, 2013 Fish are moving away from the equator and toward the poles to maintain their preferred water temperature. That means, for example, that fishermen are seeing swordfish normally found in the Mediterranean swimming near Denmark. But in the tropics, there are no fish to replace the ones that are leaving.
May 14, 2013 Only a small core of the 2,300-year-old Mayan structure remains after earth-moving equipment destroyed the rest, archaeologists say.
May 14, 2013 The International Energy Agency says U.S. shale output and petroleum from Canada's tar sands are transforming global energy markets.
May 14, 2013 By the end of the century, ocean levels could rise by 2 or 3 feet. That's enough to flood the colonists' first settlement at Jamestown, Va. And it's putting pressure on archaeologists to get as many artifacts out of the ground as quickly as possible — before it's too late.
May 14, 2013 The Canadian astronaut didn't just tweet and sing his heart out during his five months as commander of the International Space Station. He also took time out to show the world what it's like to eat up there.
May 14, 2013 A new report makes the case that insects may be essential to feeding a planet of 7 billion people. Why? They're nutritious, better for the environment than other protein sources and can generate jobs, according to the U.N.'s Food and Agriculture Organization.