17 May 2013, 06:21 PM ET
Are tornadoes intensifying?
17 May 2013, 06:11 PM ET
Barriers remain, but it may be time to talk about human cloning.
17 May 2013, 06:07 PM ET
How safe are amusement park rides?
17 May 2013, 05:58 PM ET
Using a divining rod, usually a forked twig, to find anything — water, money or people — is no better than chance.
17 May 2013, 05:57 PM ET
In 'After Earth,' humanity is faced with a choice: Leave the planet, or die off trying to remain on it.
17 May 2013, 05:17 PM ET
Lake Erie, the fourth largest Great Lake, is also famous for a battle in the War of 1812 and for the Erie Canal.
17 May 2013, 05:12 PM ET
Freshman women are more likely than men to over-drink in a week.
17 May 2013, 01:33 PM ET
Opportunity passed the Apollo 17 moon buggy, which covered 22.21 miles back in 1972.
17 May 2013, 12:59 PM ET
The first report of H1N1 in marine mammals has scientists puzzled.
17 May 2013, 12:47 PM ET
The May 31 flyby of 1.7-mile-long 1998 QE2 poses no threat to Earth.
17 May 2013, 12:15 PM ET
Close to the California mainland, yet worlds apart, Channel Islands National Park, as seen in this beautiful wallpaper, encompasses five islands and their ocean environment, preserving and protecting a wealth of natural and cultural resources.
17 May 2013, 11:56 AM ET
A scheme to save the marbled murrelet includes vomit-inducing eggs.
17 May 2013, 10:24 AM ET
17 May 2013, 10:16 AM ET
The marbled murrelet is the only shorebird that nests in trees. The marbled murrelet's central California population could go extinct because Steller's jays are stealing and eating their eggs, but California state biologists hope to save them.
17 May 2013, 10:15 AM ET
Smokers who want to quit commonly turn to e-cigarettes for help, but do the devices work?
17 May 2013, 08:28 AM ET
Officials have hopes for new museums, more paleontologists and more public interest.
16 May 2013, 06:19 PM ET
Modern perception of Vikings often cast these historic people as savage raiders with horned helmets. In truth, the Scandinavian people were much more diverse in their motives and intentions.
16 May 2013, 06:17 PM ET
Though organ theft is thriving in India, the evidence doesn't add up in this case.
16 May 2013, 06:10 PM ET
Criminologists didn't use to address wildlife crimes.
16 May 2013, 05:57 PM ET
Although it would be unethical, experts say it is likely biologically possible to clone a human being.
16 May 2013, 05:40 PM ET
The display features some of the wackiest amphibians, from the poison dart frog to the tomato frog.
16 May 2013, 05:38 PM ET
From the poison dart frog to the Mexican dumpy frog, this gallery showcases these amphibians in all their wacky splendor.
16 May 2013, 05:19 PM ET
Lake Huron has the longest shoreline of the Great Lakes. It is the second largest by surface area and the third largest by volume of water.
16 May 2013, 05:15 PM ET
Quantum computers may revolutionize complex problem-solving.
16 May 2013, 04:53 PM ET
Cloning can produce unspecialized stem cells that can be induced to grow into various types of body cells.