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15 April 2014, 11:12 PM ET
Photographs taken by NASA's Cassini probe in April 2013 show a bright arc about 750 miles long and 6 miles wide at the edge of Saturn's outermost ring. This arc was probably created by the gravity of a small, icy object nearby — possibly a newborn moon.
15 April 2014, 10:55 PM ET
This stunning wallpaper shows Grand Canyon National Park in Arizona. A powerful and inspiring landscape, the Grand Canyon overwhelms our senses through its immense size: 277 river miles (446km) long, up to 18 miles (29km) wide, and a mile (1.6km) deep.
15 April 2014, 08:12 PM ET
Post-traumatic stress disorder (PTSD) can occur after a person experiences a traumatic event, such military combat, a natural disaster, or a crisis such as 9/11.
15 April 2014, 07:51 PM ET
The liver is a vital organ that supports nearly every other organ to some capacity. You cannot live without a healthy liver.
15 April 2014, 07:29 PM ET
Sudden infant death syndrome (SIDS), sometimes called crib death, is the sudden and unexpected death of a child under 1 year old that cannot be explained by other causes.
15 April 2014, 07:01 PM ET
The popularity of weird beards and mustaches among young men living in Brooklyn, N.Y., may be more than just a hipster fad. According to a new study, women and men find facial hair most attractive when it is rare.
15 April 2014, 05:51 PM ET
The FuelBand SE is an activity tracker from the sports company Nike that allows you to track your activity and compare it with others in the Nike+ community.
15 April 2014, 05:21 PM ET
Tiny tubes deliver functioning genes to cells with broken copies.
15 April 2014, 05:12 PM ET
People who smoke marijuana a few times a week, but are not addicted to the drug, may still have changes in their brains.
15 April 2014, 04:23 PM ET
Apparently, once you've eaten human flesh, you develop a real taste for it. Two brothers in Pakistan were arrested in 2011 for digging up about 150 graves and stealing away with the bodies, which they later consumed.
15 April 2014, 04:03 PM ET
The perfect steak needs to be exposed to enough heat to denature its proteins without drying it out. Complex chemical reactions create the perfect browning on the outside.
15 April 2014, 03:10 PM ET
People who have suffered injuries to the brain or spinal cord could one day be helped with treatments based on epigenetics or gene therapy, new research shows.
15 April 2014, 03:10 PM ET
People with certain personality traits may at increased risk for drug use problems, and studying personality may help researchers better understand and treat these problems, according to a new review.
15 April 2014, 02:23 PM ET
Researchers have grown an esophagus, which brings food and water to the stomach, in a lab, and found the organ functioned as needed when implanted into rats. This research could someday help people with esophageal cancer, or injuries to the esophagus.
15 April 2014, 01:31 PM ET
A fire ravaging the scenic city of Valparaiso, Chile, is visible from satellite on April 13, 2014. So far, 15 people have died in the fire, and thousands of homes have been destroyed.
15 April 2014, 01:05 PM ET
A Google-owned company has chosen to forgo military funding for the next round of a robotics competition hosted by DARPA, the branch of the U.S. Department of Defense responsible for developing new technologies for the military.
15 April 2014, 12:49 PM ET
his month, you can fly along the Gulf of Mexico seafloor and explore an ecosystem fueled by chemicals instead of sunlight, all from the comfort of home.
15 April 2014, 12:40 PM ET
RZSS officials announced today (April 15) that Britain's only female giant panda, Tian Tian, was artificially inseminated at the Edinburgh Zoo after failing to get it on the natural way with her partner, Yang Guang.
15 April 2014, 11:38 AM ET
Discontented workers names lots of reasons for their unhappiness.
15 April 2014, 11:13 AM ET
The moon took on an eerie blood-red hue early Tuesday during the first total lunar eclipse of 2014, a celestial sight that wowed potentially millions of stargazers across North and South America. See photos of the amazing total lunar eclipse here.
15 April 2014, 10:53 AM ET
The list of food and non-food items that have been combined in an unnatural marriage just got longer: Viagra and Champagne ice cream.
15 April 2014, 10:41 AM ET
Joining iconic American objects like Judy Garland's ruby slippers and the space shuttle Discovery, a nearly complete T. rex skeleton was welcomed to the Smithsonian this morning (April 15).
15 April 2014, 10:21 AM ET
Four prominent physicists say they were misquoted in a documentary trailer promoting a claim debunked more than 450 years ago: that the Earth is in a privileged spot in the universe.
15 April 2014, 09:58 AM ET
People of numerous pre-Columbian civilizations in northern Chile, including the Incas and the Chinchorro culture, suffered from chronic arsenic poisoning due to their consumption of contaminated water, new research suggests.
15 April 2014, 09:42 AM ET
People of numerous pre-Columbian civilizations in northern Chile, including the Incas and the Chinchorro culture, suffered from chronic arsenic poisoning due to their consumption of contaminated water, new research suggests.
15 April 2014, 04:08 AM ET
Drowning is a leading cause of accidental death for children, with rates even surpassing those of traffic accident fatalities for some groups in recent years, according to a new report.
15 April 2014, 01:16 AM ET
Swollen veins that bump out from beneath the skin are called varicose veins or spider veins. There are several causes, as well as several methods of treatment.
15 April 2014, 01:03 AM ET
Anthropology is the study of humans, early hominids and primates. Anthropologists study human language, culture and societies.
14 April 2014, 10:14 PM ET
This beautiful space wallpaper is a composite image combining a new infrared view of the Crab Nebula, obtained with ESA’s Herschel Space Observatory, with an optical image from the archives of the NASA/ESA Hubble Space Telescope.
14 April 2014, 10:08 PM ET
A powerful scientific tool set to come online in 2015 could help scientists spot gravitational waves, ripples in space-time born from violent cosmic crashes light-years from Earth.
14 April 2014, 06:58 PM ET
A single bacterial strain may help researchers better understand the processes of global carbon cycling.
14 April 2014, 06:20 PM ET
These beautiful flowers are a toxic enemy to cats who might nibble at the flowers' petals or drink their vase water.