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08 July 2014, 03:03 PM ET
The $25 million Telescope Array cosmic ray observatory west of Delta, Utah, the Northern Hemisphere's largest cosmic ray detector, recently detected a cosmic ray hotspot beneath the Big Dipper.
08 July 2014, 02:45 PM ET
A new world-record UV index was measured in 2003 at Bolivia's Licancabur volcano.
08 July 2014, 02:00 PM ET
A single gene that controls male and female sexes in one organism evolved from a simpler precursor gene in a unicellular algae, new research suggests.
08 July 2014, 12:01 PM ET
The huge swirling storm was captured from space by a NASA satellite on July 7, as it churned toward Okinawa.
08 July 2014, 11:29 AM ET
New data from the ESA's Swarm satellite array shows that Earth's magnetic field is weakening, but don't worry, doomsday is not in the forecast.
08 July 2014, 10:22 AM ET
Global cooling caused by some historic volcanic eruptions wasn't as extreme as climate scientists recently thought, according to newly revised ice core records from Antarctica.
08 July 2014, 09:24 AM ET
A "world-class" dinosaur track site discovered within Denali National Park shows herds of duck-billed dinosaurs once tramped through muddy rivers in family groups.
08 July 2014, 09:16 AM ET
Dinosaur hunters discovered thousands of tracks from a herd of duck-billed dinosaurs, or hadrosaurs, in Alaska's Denali National Park. Here are images of the spectacular fossil find.
08 July 2014, 08:32 AM ET
Surges of gas-charged fluid may have explosively generated the earthquakes preceding a giant sinkhole in Louisiana, researchers say. The findings may help scientists understand how pressurized fluids trigger earthquakes.
08 July 2014, 07:29 AM ET
A hotspot of ultrahigh-energy cosmic rays has been found in the vicinity of the Big Dipper, though the source of the rays remains a mystery.
08 July 2014, 02:10 AM ET
This new Hubble image shows a cosmic creepy-crawly known as the Tarantula Nebula in infrared light. This region is full of star clusters, glowing gas, and thick dark dust. Image released Jan. 9, 2014.
07 July 2014, 06:55 PM ET
For teens, bangs may be more than a fashion statement. Having "Justing Bieber hair" may protect skin against sun damage, doctors say.
07 July 2014, 05:49 PM ET
For women, being "hypersexual" may mean high rates of masturbation and pornography use, rather than more passive behaviors such as fantasizing, as previous studies had suggested, new research finds.
07 July 2014, 05:00 PM ET
Some health fairs offer to screen people for a buildup of plaque in blood vessels in their neck, but new guidelines recommend against such screening in people who do not have symptoms.
07 July 2014, 04:55 PM ET
Today is the 86th anniversary of the invention of sliced bread and the 134th birthday of its inventor, Otto Rohwedder.
07 July 2014, 04:26 PM ET
The remains of an ancient human in China not thought to be Neanderthal unexpectedly possesses an inner ear much like that of humans' closest extinct relatives, according to a new study.
07 July 2014, 04:23 PM ET
The berg winds of southern Africa are seen blowing plumes of dust off the Namibian coast in a new astronaut image. These hot, dry winds originate from inland mountains and blow dust toward the sea.
07 July 2014, 03:37 PM ET
Humans were building in the Amazon before the rainforest existed, according to a new study of the ancient ecology of northeastern Bolivia. Mysterious earthen ditches were made when the region was a savanna.
07 July 2014, 03:30 PM ET
Water could have flowed on the surface of Mars with the help of salts in the Martian soil that can melt ice, just as salts on Earth can be used to melt ice on slippery winter roads and sidewalks, researchers say.
07 July 2014, 03:15 PM ET
Researchers have found a series of earthworks, including ringlike ditches, scattered throughout the Amazon rainforest of Boliva and Brazil were there before the forest emerged.
07 July 2014, 03:04 PM ET
European scientists have called for the review of a major neuroscience initiative, criticizing the program for taking a narrow approach that they say is likely to fail.
07 July 2014, 03:02 PM ET
The largest flying bird known to ever have lived has now been revealed, an extinct giant with a wingspan more than twice as big as that of the largest living flying bird. The bird, researchers say, is like something out of a fantasy novel.
07 July 2014, 03:01 PM ET
This extinct flier would've sported a wingspan of some 17 feet across, gliding through the skies about 25 million years ago and taking out prey with toothy projections from its jaw.
07 July 2014, 09:01 AM ET
The colorful and aggressive mantis shrimp evolved a new way to use a naturally occurring, biological sunscreen: The animals use this compound to filter light from their eyes.
07 July 2014, 08:40 AM ET
An earthquake of preliminary magnitude 7.1 struck today along the Pacific coast of southern Mexico's state of Chiapas, according to the U.S. Geological Survey (USGS).
07 July 2014, 08:08 AM ET
Life-size human statues and column bases from a long-lost temple dedicated to a supreme god, dating back over 2,500 years, have been discovered in the Kurdistan region of northern Iraq.
07 July 2014, 08:05 AM ET
Several artifacts, including life-size human statues of bearded males and the remains of a long-lost temple, have been discovered in the Kurdistan region of northern Iraq.
06 July 2014, 02:33 PM ET
Researchers have figured out a new way to predict which rivers are most at risk of dangerous flooding.
03 July 2014, 06:30 PM ET
A teen who took ecstasy survived a ruptured aneurysm in an artery near his spinal cord, but experts say his case is a reminder of the drug's dangers.
03 July 2014, 05:47 PM ET
A scientific journal that recently published a controversial study about how emotions can spread across social networks issued a note today (July 3) to address the uproar caused by the contentious research.
03 July 2014, 05:09 PM ET
Drones have been banned from all national parks in the United States, according to new regulations established by U.S. government officials.
03 July 2014, 05:04 PM ET
As of June 18, an Ebola outbreak in West Africa has killed at least 337 people, according to the Centers for Disease Control and Prevention.