Astronomers Map Itsy Bitsy Galaxy Halfway Across Universe

tiny galaxy, nearly halfway across the universe A tiny galaxy (lower right), nearly halfway across the universe, the smallest in size and mass known to exist at that distance.
  • submit to reddit

October 04, 2007

Leonidas Moustakas of JPL and his international colleagues have used a trick of nature called gravitational lensing to make a detailed map of a tiny galaxy nearly halfway across the universe. The little galaxy, the smallest in size and mass measured that far away, can be seen at the center of the image as a ring around a bright dot. Why is the galaxy a ring? The dot in the center is actually a different galaxy in the foreground, whose gravity is bending the tiny galaxy's light into what's called an Einstein ring.

You can read the full release from the Univerity of California, Santa Barbara, at http://www.ia.ucsb.edu/pa/display.aspx?pkey=1660#description



Gauging an Alien World's Size The Most Precise Measurement of an Alien World's Size

› Read more

Kepler-186f, the first Earth-size Planet in the Habitable Zone Leading Space Experts to Discuss the Search for Life Beyond Earth

› Read more

Planet with Twin Parent Stars Newfound Frozen World Orbits in Binary Star System

› Read more


Get JPL Updates
Sign Up for JPL UpdatesRegister today and receive up-to-the-minute e-mail alerts delivered directly to your inbox.
Sign Up for JPL Updates