21 April 2014, 05:33 PM ET
Humans are just the latest in a long line of hominid species that have emerged in the past six million years.
18 April 2014, 05:48 PM ET
Studies of brain scans of pot smokers found that the density of brain matter was increased in the pleasure centers of the brain.
18 April 2014, 04:00 PM ET
Unmanned submersible uses sonar to scan the ocean floor and return a 3D map to the surface.
17 April 2014, 08:11 AM ET
59 percent of those polled were optimistic, while 30 percent thought the changes would make people worse off.
04 April 2014, 11:21 AM ET
Researchers create maps of beer preferences by geotagging tweets.
27 March 2014, 02:00 PM ET
By editing its DNA sequence on a computer, scientists modified a eukaryotic yeast cell.
26 March 2014, 05:25 PM ET
Patches of cells in the outer layer of the cortex are disorganized in the brains of autistic children.
24 March 2014, 05:15 PM ET
More than two weeks after its strange disappearance, Malaysian officials announced they believe Flight 370 crashed into the sea.
19 March 2014, 03:04 PM ET
Advanced societies frequently collapse unless steps are taken to regulate resource consumption and economic stratification.
27 February 2014, 11:46 AM ET
The U.S. Food and Drug Administration wants to update the labeling on food packages to reflect the latest thinking on diet and nutrition.
04 February 2014, 02:26 PM ET
Chart shows average high and low temperatures of Olympics sites since 1924.
03 February 2014, 05:01 PM ET
Relative number of calories expended during 10 minutes of various Olympic activities.
14 January 2014, 01:08 PM ET
By surrounding their star with swarms of energy-collecting satellites, advanced civilizations could create Dyson spheres.
20 December 2013, 05:00 PM ET
Dec. 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere and marks the beginning of winter.
19 December 2013, 09:23 AM ET
The Challenge is a series of tasks to test the capabilities of robots designed for disaster response in emergencies.
15 December 2013, 08:39 AM ET
The U.S. and China produce more total e-waste than any other country, according to a new map that tracks e-waste around the world.
26 November 2013, 07:16 AM ET
The challenge of managing the world's waste in the 21st century.
15 November 2013, 03:04 PM ET
Typhoon Haiyan dwarfed recent big storms, but wasn't the largest one recorded.
14 November 2013, 12:15 PM ET
E-cigarettes vaporize a flavored liquid rather than burning tobacco.
12 November 2013, 03:28 PM ET
Climate change threatens to reduce crop yields in much of the world.
30 October 2013, 06:13 PM ET
Drinking soft drinks alone gives teenagers more than the recommended maximum daily amount of sugar.
29 October 2013, 12:05 PM ET
A by-the-numbers look at the devastation caused by Hurricane Sandy.
18 October 2013, 04:46 PM ET
Facts about the different types of light bulbs.
17 October 2013, 07:00 PM ET
Common household chores may not burn as many calories as you think.
08 October 2013, 03:03 PM ET
Scientists are developing a theoretical process for resurrecting the extinct animals by genetically engineering elephants.
27 September 2013, 02:52 PM ET
The IPCC's 2013 report presents the strongest case yet that humans are responsible for the changes in the Earth's environment.
27 September 2013, 11:58 AM ET
The IPCC report found that “with 95 percent certainty” at least half of the observed warming could be accounted for by human activity.
26 September 2013, 12:48 PM ET
A recent poll shows that 15 percent of Americans don't use the Internet at all.
28 August 2013, 01:00 PM ET
Scientists can now grow functional mini brains for study.
26 August 2013, 01:40 PM ET
All about sex change surgeries.
22 August 2013, 09:32 AM ET
Scientists found that upcoming films with high Wikipedia activity tended to do well at the box office.
20 August 2013, 01:51 PM ET
Learn about the muscles that move your body and keep you alive.