Uncategorized

  1. Space

    The wobbling orbit of a pulsar proves Einstein right, yet again

    Astronomers have found a pulsar’s orbit being rocked to and fro as a neighboring white dwarf whips up spacetime, in accordance with general relativity.

    By Christopher Crockett
  2. Life

    Engineered honeybee gut bacteria trick attackers into self-destructing

    Tailored microbes defend bees with a gene-silencing process called RNA interference that takes on viruses or mites.

    By Susan Milius
  3. Genetics

    A new genetic analysis reveals that modern Africans have some Neandertal DNA too

    Humans migrating back to Africa brought genetic material from humans’ extinct Neandertal relatives along for the ride.

    By Bruce Bower
  4. Health & Medicine

    Stem cell clinics’ much-hyped treatments lack scientific support

    Stem cell treatments for knee pain are strong on marketing, weak on science.