Uncategorized

  1. Animals

    Bird nests made with a toxic fungus seem to fend off attacking ants

    Two species of birds in Costa Rica build nests in trees defended by ants. Ants that encounter the horsehair fungus in the nests develop odd behaviors.

    By Richard Kemeny
  2. Astronomy

    Betelgeuse has a tiny companion star hidden in plain sight

    Betelgeuse has a sequel — in the form of a companion star that's about the same mass as the sun, orbiting it about once every 2,100 days.

    By Lisa Grossman
  3. Astronomy

    Starlink satellites’ leaky radio waves obscure the cosmos

    Starlink satellites unintentionally emit radio waves that appear more than 10 million times brighter than natural sources, as seen by ground-based radio telescopes.