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15 May 2013, 02:49 PM ET
The Spartans of ancient Greece are famed for their martial traditions. But there is much more to Spartan history than the '300.'
15 May 2013, 02:41 PM ET
Massive explosions excavated the Earth when fire met ice.
15 May 2013, 02:37 PM ET
Hold onto your lunch! Watch construction workers complete the tower. The topmost section was lofted into place with an attached camera rolling. Topping out at 1776 feet, it was the 3rd tallest building in the world at the time of completion.
15 May 2013, 01:40 PM ET
Marijuana users have fewer health risks linked to diabetes.
15 May 2013, 01:24 PM ET
Today marks the start of the 2013 Eastern Pacific hurricane season and right on time the first tropical depression of the season has formed.
15 May 2013, 01:00 PM ET
Find has implications for understanding of life on Earth and maybe Mars.
15 May 2013, 01:00 PM ET
New evidence fills a significant gap in the primate fossil record.
15 May 2013, 12:04 PM ET
The NIH plans to carry out trials to test a H7N9 vaccine. How will we know if the vaccine works?
15 May 2013, 11:11 AM ET
Constant cleaning is crucial to function properly.
15 May 2013, 10:49 AM ET
Predatory bacteria may be able to unleash their "evil tricks" onto pesky bugs.
15 May 2013, 10:38 AM ET
The X1.2 solar flare was the fourth X-class flare in two days from the sunspot AR1748.
15 May 2013, 10:27 AM ET
This wallpaper shows Mesa Verde National Park in Colorado. Mesa Verde, Spanish for green table, offers a spectacular look into the lives of the Ancestral Pueblo people who made it their home for more than 700 years, from A.D. 600 to A.D. 1300.
15 May 2013, 10:22 AM ET
The recommended 30 minutes of daily exercise could be cut to 7 minutes with a new high-intensity workout routine.
15 May 2013, 09:00 AM ET
Long term use of opioid is linked with an increased risk of erectile dysfunction.
15 May 2013, 08:51 AM ET
Ancient structures may be hidden below rainforest canopy.
15 May 2013, 08:07 AM ET
News and articles about 3D printing and what 3D printers can actually create.
14 May 2013, 07:15 PM ET
If people believe their skin is darker than it is, they become less unconsciously biased toward other races.
14 May 2013, 07:06 PM ET
Scientists re-examined the idea that modern bird behavior can be used to predict behaviors of dinosaurs.
14 May 2013, 07:06 PM ET
The wide range of wonderful rocks found in Hawaii.
14 May 2013, 07:01 PM ET
Using a CT scanner, researchers have captured gorgeous, 3D images of caterpillars undergoing metamorphosis
14 May 2013, 07:01 PM ET
Using a CT scanner, researchers have revealed the transformation from caterpillar to butterfly in stunning detail
14 May 2013, 06:31 PM ET
Niels Bohr won a Nobel Prize for the idea that an atom is a small, positively charged nucleus surrounded by orbiting electrons. He also contributed to quantum theory.
14 May 2013, 06:21 PM ET
Clean Air Act challenge continues, can its protections?
14 May 2013, 05:47 PM ET
The faraway star cluster NGC 6496 is 10.5 billion years old and 32,600 light-years away.
14 May 2013, 05:38 PM ET
Lake Michigan is the only Great Lake located entirely in the United States.