Fri, Sep 20, 2013 at 2:37 PM
The Obama administration has unveiled a plan to limit carbon dioxide emissions from new coal-fired power plants. Here's a look at what the new rules could mean.
Thu, Sep 19, 2013 at 2:39 PM
Animals with smaller bodies and faster metabolic rates perceive time more slowly than we do, researchers say, letting them soak up more information per second.
Wed, Sep 18, 2013 at 3:40 PM
Trade winds help bring Hawaii its world-famous weather, but they've mysteriously dwindled in recent decades. A new video captures their beauty while it lasts.
Fri, Sep 13, 2013 at 2:03 PM
A 233,000-gallon molasses spill has killed thousands of marine creatures off the coast of Honolulu. But how can an edible substance be so deadly to wildlife?
Mon, Sep 16, 2013 at 9:45 AM
An unlucky amphibian learned a hard lesson about rocket science last week.
Wed, Sep 11, 2013 at 9:17 AM
Following a model that helped spark global air travel and private space flight, the X Prize Foundation is offering a small fortune for answers about ocean acidification.
Thu, Sep 05, 2013 at 4:21 PM
A huge-looking moon at the horizon isn't actually bigger, closer or even distorted by the atmosphere. It's just a lunar illusion that has defied explanation for millennia.
Tue, Sep 03, 2013 at 2:01 PM
Endangered sea turtles are rebounding 'dramatically' along the Southeastern U.S. coast, federal officials say, but they're still at risk from pollution and climate change.
Fri, Aug 30, 2013 at 3:52 PM
A new time-lapse video honors the recently retired GOES-12 weather satellite.
Wed, Aug 28, 2013 at 4:05 PM
The icy island, famous for an ironic misnomer, is about to be recolored by climate change. A new study explores the implications of a Greenland that's actually green.