SPACE PHOTOS THIS WEEK: Earth Mosaic, Exoplanet, More

SPACE PHOTOS THIS WEEK: Earth Mosaic, Exoplanet, More
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November 18, 2008--A composite image shows the central region of the Milky Way galaxy, known as Sagittarius A*, which contains a supermassive black hole.

Astronomers using two telescopes recently captured outbursts from the black hole in different light wavelengths at the same time. The violent flares show how matter is being stretched as it orbits the event horizon, the area immediately surrounding the black hole.

"Observations like this, over a range of wavelengths, are really the only way to understand what's going on close to the black hole," said team leader Andreas Eckart of the University of Cologne.
—Image by ESO/APEX/2MASS/A. Eckart et al
 
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