Uncategorized

  1. 19775

    The statement in the article that astronomers “don’t yet have” a probe to journey to the vicinity of a black hole is puzzling. As far as I know, the closest known black hole is V4641, more than 1,500 light-years away. Given that, the implied assumption that a probe will someday be able to reach a […]

    By Science News
  2. Astronomy

    A New Spin

    Using a flotilla of spacecraft to study X-ray emissions from the vicinity of black holes, astronomers are nudging ever closer to the whirlpool of activity surrounding these gravitational monsters.

    By Ron Cowen
  3. Math

    The Coin in the Cake

    Hiding a coin in a cake offers a lucky slice and a tantalizing math problem.