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E.g., 11/13/2018
E.g., 11/13/2018
Your search has returned 2804 images:
  • mammoth, mastodon, and gomphothere
  • moon
  • fish oil
Your search has returned 25133 articles:
  • Feature

    How mammoths competed with other animals and lost

    The Gray Fossil Site, a sinkhole in northeastern Tennessee, is full of prehistoric treasures. Between 7 million and 4.5 million years ago, rhinoceroses, saber-toothed cats and other creatures, even red pandas, perished here by the edge of a pond. But that bounty of fossils pales next to the site’s biggest find: a mastodon’s skeleton, nearly 5 million years old, preserved in exquisite detail...

    11/13/2018 - 12:30 Ecosystems, Archaeology, Paleontology
  • News

    China is about to visit uncharted territory on the moon

    China is about to make space history. In December, the country will launch the first spacecraft ever to land on the farside of the moon. Another craft, slated for takeoff in 2019, will be the first to bring lunar rocks back to Earth since 1976.

    These two missions — the latest in China’s lunar exploration series named after the Chinese moon goddess, Chang’e — are at the forefront of...

    11/11/2018 - 07:00 Planetary Science
  • News

    A potent fish oil drug may protect high-risk patients against heart attacks

    Cholesterol-lowering drugs may one day gain a sidekick in the battle against heart disease. Taking a potent drug derived from fish oil along with a statin lowers the risk of heart attack and stroke in some high-risk people, researchers report.

    A clinical trial called REDUCE-IT tested the approach in more than 8,000 participants who either had cardiovascular disease or were at high risk...

    11/10/2018 - 15:00 Health, Clinical Trials
  • News

    Vitamin D supplements don’t prevent heart disease or cancer

    CHICAGO — Taking a vitamin D supplement does not reduce the risk of having a potentially fatal heart attack or stroke or for getting an invasive cancer, according to highly anticipated results of a large clinical trial.

    The VITAL trial found no significant difference in cancer or heart health risk between people taking 2,000 international units, or IU, of vitamin D a day and those who...

    11/10/2018 - 15:00 Health, Clinical Trials
  • News

    Ancient DNA suggests people settled South America in at least 3 waves

    DNA from a 9,000-year-old baby tooth from Alaska, the oldest natural mummy in North America and remains of ancient Brazilians is helping researchers trace the steps of ancient people as they settled the Americas. Two new studies give a more detailed and complicated picture of the peopling of the Americas than ever before presented.

    People from North America moved into South America in at...

    11/09/2018 - 09:00 Genetics, Ancestry
  • News

    Hints of Oort clouds around other stars may lurk in the universe’s first light

    A thick sphere of icy debris known as the Oort cloud shrouds the solar system. Other star systems may harbor similar icy reservoirs, and those clouds may be visible in the universe’s oldest light, researchers report.

    Astronomer Eric Baxter of the University of Pennsylvania and colleagues looked for evidence of such exo-Oort clouds in maps of the cosmic microwave background, the cool...

    11/09/2018 - 06:00 Planetary Science, Exoplanets, Cosmology
  • News

    These fragile, futuristic batteries run longer with a little oil

    Batteries that use aluminum and oxygen normally live fast and die young. But a new design could help these high-energy devices endure.

    Aluminum-air batteries are promising candidates for a new generation of non-rechargeable batteries, because they’re super lightweight and compact. The batteries, however, aren’t widely used because their internal components quickly degrade each other. In...

    11/08/2018 - 14:00 Chemistry, Technology
  • News in Brief

    The number of calories you burn while resting depends on the time of day

    Timing is everything. Even how many calories a person burns while at rest depends on the hour.

    People burn about 129 more calories when resting in the afternoon and evening than in the early morning. But morning is better for burning carbohydrates, while fats are more likely to be burned in the evening, researchers report November 8 in Current Biology. The findings add to evidence that...

    11/08/2018 - 11:00 Physiology
  • News in Brief

    Marijuana may change the decision-making part of teen brains

    SAN DIEGO — Marijuana use during teenage years may change the brain in key decision-making areas, a study in rats suggests.

    “Adolescence is a dangerous time to be insulting the brain, particularly with drugs of abuse,” study coauthor Eliza Jacobs-Brichford said November 7 at the annual meeting of the Society for Neuroscience.

    Jacobs-Brichford and colleagues gave adolescent male and...

    11/07/2018 - 16:05 Neuroscience
  • 50 years ago, atomic testing created otter refugees

    Sea otters restocked in old home

    When the [Atomic Energy Commission] first cast its eye on the island of Amchitka as a possible site for the testing of underground nuclear explosions, howls of anguish went up; the island is part of the Aleutians National Wildlife Refuge, created to preserve the colonies of nesting birds and some 2,500 sea otters that live there…— Science News, ...

    11/07/2018 - 11:30 Animals