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In a break from its usual task of searching for distant cosmic explosions, NASA's Swift satellite has acquired the highest-resolution view of a neighboring spiral galaxy ever attained in the ultraviolet. M31, also known as the Andromeda Galaxy, is more than 220,000 light-years across and lies 2.5 million light-years away.
The task of assembling the resulting 85 gigabytes of images fell to Erin Grand, an undergraduate student at the University of Maryland at College Park who worked with Immler as an intern this summer. In 1885, an exploding star in M31's central bulge became bright enough to see with the naked eye. The galaxy, known as M31 in the constellation Andromeda, is the largest and closest spiral galaxy to our own.

The first is the striking difference between the galaxy's central bulge and its spiral arms. As in our own galaxy, M31's disk and spiral arms contain most of the gas and dust needed to produce new generations of stars. Previous studies have shown that tides raised by the many small satellite galaxies in orbit around M31 help boost the interactions within gas clouds that result in new stars.
Since Swift's November 2005 launch, the satellite has detected more than 400 gamma-ray bursts -- massive, far-off explosions likely associated with the births of black holes.
It was built and is being operated in collaboration with Pennsylvania State University, the Los Alamos National Laboratory in New Mexico, and General Dynamics of Gilbert, Ariz., in the United States.

The images and video are that of high quality and really show how the iPhone 6 mockups compare against the current model. Star clusters are especially plentiful in an enormous ring about 150,000 light-years across. International collaborators include the University of Leicester and Mullard Space Sciences Laboratory in the United Kingdom, Brera Observatory and the Italian Space Agency in Italy, and additional partners in Germany and Japan.

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