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This week in pictures: September 15–21, 2012

In the past seven days, astronomers discovered the first exoplanets orbiting Sun-like stars in a cluster, two space telescopes collectively spotted what could be the most distant galaxy ever seen, Dawn spacecraft data revealed hydrated minerals on the giant asteroid Vesta, and more.

NASA/ESA/STScI/JHU

Telescopes spy ultra-distant galaxy amidst cosmic "Dark Ages"

The discovery of the faint, small galaxy seen when the universe was just 500 million years old opens a window onto the deepest, remotest epochs of cosmic history. Learn more »
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