Science: Peanuts in the Sky

For nearly a decade, radio astronomers have recorded the telltale signals emitted by a streamer of hydrogen clouds off the far edge of the Milky Way. Most scientists have believed that the source of the signals is somewhere in the giant galaxy of some 200 billion stars that includes the sun and its planets. But a University of Maryland astronomer has a different idea. S. Christian Simonson III concludes in Astrophysical Journal Letters that the source is a separate pint-size galaxy—the Milky Way's closest cosmic companion.

Most galaxies have been discovered by conventional optical...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!