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E.g., 01/23/2017
Your search has returned 58 images:
  • illustration of Amasia
  • tomatillo fossil
  • Mummy in Lithuanian crypt
Your search has returned 159 articles:
  • Feature

    Evidence falls into place for once and future supercontinents

    Look at any map of the Atlantic Ocean, and you might feel the urge to slide South America and Africa together. The two continents just beg to nestle next to each other, with Brazil’s bulge locking into West Africa’s dimple. That visible clue, along with several others, prompted Alfred Wegener to propose over a century ago that the continents had once been joined in a single enormous landmass....

    01/11/2017 - 08:38 Earth
  • The –est

    Tomatillo fossil is oldest nightshade plant

    Two tiny tomatillo fossils have kicked the origin of nightshade plants back to the age of dinosaurs.

    The fossils, pressed into 52-million-year-old rock, suggest that the nightshade family originated millions of years earlier than scientists had suspected, researchers report in the Jan. 6 Science.

    Nightshades include roughly 2,500 species of plants, from tomatoes to eggplants to...

    01/05/2017 - 14:14 Paleontology, Plants
  • The –est

    Oldest traces of smallpox virus found in child mummy

    A child mummy buried in a church crypt in Lithuania could hold the oldest genetic evidence of smallpox.

    Traces of the disease-causing variola virus linger in the mummy, which dates to about 1654, evolutionary geneticist Ana Duggan and colleagues report December 8 in Current Biology. Previously, a team of researchers had reported variola DNA in a roughly 300-year-old Siberian mummy.

    ...
    12/08/2016 - 12:00 Health, Anthropology
  • News

    HIV came to NYC at least a decade before virus ID’d

    A genetic study of HIV viruses from the 1970s may finally clear the name of a man long identified as the source of the AIDS epidemic in the United States. HIV came to New York City between 1969 and 1973, long before the man known as Patient Zero became infected, researchers report October 26 in Nature.

    Using techniques developed to decipher badly degraded ancient DNA from fossils,...

    10/26/2016 - 13:06 Genetics, Microbiology, Science & Society
  • News in Brief

    Barnacles track whale migration

    DENVER — Barnacles can tell a whale of a tale. Chemical clues inside barnacles that hitched rides on baleen whales millions of years ago could divulge ancient whale migration routes, new research suggests.

    Modern baleen whales migrate thousands of kilometers annually between breeding and feeding grounds, but almost nothing is known about how these epic journeys have changed over time....

    09/27/2016 - 12:01 Animals, Paleontology, Oceans
  • News

    Nuclear blasts, other human activity signal new epoch, group argues

    Humankind’s bombs, plastics, chickens and more have altered the planet enough to usher in a new chapter in Earth’s geologic history. That’s the majority opinion of a group of 35 experts tasked with evaluating whether the current human-dominated time span, unofficially dubbed the Anthropocene, deserves a formal place in Earth’s geologic timeline alongside the Eocene and the Pliocene.

    In a...

    09/25/2016 - 06:00 Earth, Climate, Science & Society
  • News

    See where Clinton and Trump stand on science

    Hillary Clinton’s “I believe in science” declaration aside, science has not played a starring role in the 2016 presidential election. Far from it. For the most part, the candidates’ science policies have trickled out in dribs and drabs, and in varying degrees of detail — talking points on a website here, a passing comment in response to a spur-of-the-moment question there.

    Yet science...

    09/13/2016 - 12:25 Science & Society
  • Feature

    The pressure is on to make metallic hydrogen

    In a few highly specialized laboratories, scientists bombard matter with the world’s most powerful electrical pulses or zap it with sophisticated lasers. Other labs squeeze heavy-duty diamonds together hard enough to crack them.

    All this is in pursuit of a priceless metal. It’s not gold, silver or platinum. The scientists’ quarry is hydrogen in its most elusive of forms.

    Several...

    08/10/2016 - 09:00 Physics, Materials, Condensed Matter
  • News

    Zika epidemic peaking in Latin America

    Zika should soon run its course in Latin America.

    Within the next couple of years, the epidemic that has battered the region since 2015 will largely be over, researchers estimate in a paper online July 14 in Science.

    “If we’re not past the peak already, we’re very close to it,” says study coauthor Neil Ferguson of Imperial College London. After this outbreak winds down, it may be a...

    07/14/2016 - 14:00 Health
  • Feature

    Vaccines could counter addictive opioids

    By age 25, Patrick Schnur had cycled through a series of treatment programs, trying different medications to kick his heroin habit. But the drugs posed problems too: Vivitrol injections were painful and created intense heroin cravings as the drug wore off. Suboxone left him drowsy, depressed and unable to study or go running like he wanted to. Determined to resume the life he had before his...

    06/28/2016 - 12:00 Health, Neuroscience, Clinical Trials