Monday, January 10, 2011

Hubble Zeroes in on Green Blob in Space

The Hubble Space Telescope got its first peek at a mysterious giant green blob in outer space and found that it's strangely alive. The bizarre glowing blob is giving birth to new stars, some only a couple million years old, in remote areas of the universe where stars don't normally form. The blob of gas was first discovered by a Dutch school teacher in 2007 and is named Hanny's Voorwerp (HAN'-nee's-FOR'-vehrp). "Voorwerp" is Dutch for object.

Parts of the green blob are collapsing and the resulting pressure from that is creating the stars. The stellar nurseries are outside of a normal galaxy, which is usually where stars live. That makes these "very lonely newborn stars" that are "in the middle of nowhere," said Bill Keel, the University of Alabama astronomer who examined the blob. The blob is the size of our own Milky Way galaxy and it is 650 million light years away. It is mostly hydrogen gas swirling from a close encounter of two galaxies and it glows because it is illuminated by a quasar in one of the galaxies.

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