Thursday, December 29, 2011

Einstein Ring Hubble Image: Cosmic Horseshoe seems to surround Red galaxy

A fortuitous alignment of celestial mechanics has given the Hubble Space Telescope an amazing view of some distant galaxies.

Here, one interesting red galaxy is encircled by a hazy blue horseshoe shape and contains about 10 times the mass of our Milky Way galaxy.

It's actually the blue horsehoe shape that has astronomers talking about this photo.

The horseshoe is actually a distant galaxy that has been magnified and warped into a nearly complete ring by the strong gravitational pull of the massive red galaxy in the foreground.

To see such a so-called Einstein Ring required the fortunate alignment of the foreground and background galaxies, making this object’s nickname "the Cosmic Horseshoe" particularly apt, NASA says.

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