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E.g., 04/24/2017
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  • Rethink

    Beetles have been mooching off insect colonies for millions of years

    Mooching roommates are an ancient problem. Certain species of beetles evolved to live with and leech off social insects such as ants and termites as long ago as the mid-Cretaceous, two new beetle fossils suggest. The finds date the behavior, called social parasitism, to almost 50 million years earlier than previously thought.

    Ants and termites are eusocial — they live in communal groups...

    04/24/2017 - 16:00 Animals, Paleontology
  • News

    No long, twisted tail trails the solar system

    The solar system doesn’t have a long, twisted tail after all.

    Data from the Cassini and Voyager spacecraft show that the bubble of particles surrounding the solar system is spherical, not comet-shaped. Observing a spherical bubble runs counter to 55 years of speculation on the shape of this solar system feature, says Tom Krimigis of the Johns Hopkins Applied Physics Laboratory in Laurel...

    04/24/2017 - 11:00 Astronomy
  • News in Brief

    Gamma-ray evidence for dark matter weakens

    A potential sign of dark matter is looking less convincing in the wake of a new analysis.

    High-energy blips of radiation known as gamma rays seem to be streaming from the center of the Milky Way in excess. Some scientists have proposed that dark matter could be the cause of that overabundance. Particles of dark matter — an invisible and unidentified substance that makes up the bulk of...

    04/24/2017 - 09:00 Physics, Astronomy
  • Science & the Public

    We went to the March for Science in D.C. Here's what happened

    */ [View the story "The March for Science, Washington, D.C." on Storify]
    04/22/2017 - 19:02 Science & Society
  • Science Ticker

    Watch the March for Science in Washington, D.C.

    Science News will be on the scene at the April 22 March for Science in Washington, D.C.  Follow us on Twitter (@ScienceNews) and watch the live stream below.  

    The march may be “unprecedented,” sociologist Kelly Moore told Rachel Ehrenberg for a blog post giving a historical perspective on scientists' activism. “This is the first time in American history where scientists have taken to...

    04/22/2017 - 06:00 Science & Society
  • News in Brief

    Ötzi the Iceman froze to death

    NEW ORLEANS — Ever since Ötzi’s mummified body was found in the Italian Alps in 1991, researchers have been trying to pin down how the 5,300-year-old Tyrolean Iceman died. It now looks like this Copper Age hunter-gatherer simply froze to death, perhaps after suffering minor blood loss from an arrow wound to his left shoulder, anthropologist Frank Rühli of the University of Zurich reported...

    04/21/2017 - 17:47 Anthropology
  • Context

    Top 10 science anniversaries of 2017

    Second of two parts

    Every year science offers a diverse menu of anniversaries to celebrate. Births (or deaths) of famous scientists, landmark discoveries or scientific papers — significant events of all sorts qualify for celebratory consideration, as long as the number of years gone by is some worthy number, like 25, 50, 75 or 100. Or simple multiples thereof with polysyllabic names....

    04/21/2017 - 10:57 History of Science
  • Science Ticker

    In ‘grand finale,’ Cassini spacecraft sets off on collision course with Saturn

    View the animation

    Cassini is bravely going where no spacecraft has gone before — between Saturn and its rings.

    The probe, which launched in 1997 and has orbited Saturn since 2004, starts this daring expedition April 22. It will fly through the 2,400-kilometer-wide gap between Saturn and its rings 22 times before plunging into the planet’s atmosphere and burning up on Sept. 15....

    04/21/2017 - 07:00 Planetary Science
  • News

    Collider data hint at unexpected new subatomic particles

    A handful of measurements of decaying particles has seemed slightly off-kilter for years, intriguing physicists. Now a new decay measurement at the Large Hadron Collider in Geneva has amplified that interest into tentative enthusiasm, with theoretical physicists proposing that weird new particles could explain the results. Scientists with the LHCb experiment reported the new result on April 18...

    04/20/2017 - 15:47 Particle Physics
  • News

    Immune cells play surprising role in steady heartbeat

    Immune system cells may help your heart keep the beat. These cells, called macrophages, usually protect the body from invading pathogens. But a new study published April 20 in Cell shows that in mice, the immune cells help electricity flow between muscle cells to keep the organ pumping.

    Macrophages squeeze in between heart muscle cells, called cardiomyocytes. These muscle cells...

    04/20/2017 - 12:35 Cells, Microbiology