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The week in pictures: January 1–6, 2012

This past week saw a pair of spacecraft enter orbit around the Moon, the Opportunity rover prepare for winter on Mars, a new adaptive optics system for Gemini South, and more.

The smoky pink core of the Omega Nebula

This nebula ranks as one of the youngest and most active stellar nurseries for massive stars in the Milky Way. Learn more »

"The week in pictures" highlights the amazing discoveries and cutting-edge research that resulted in magnificent photos and illustrations in the past week's Astronomy.com News section. Scroll through the photos, comment on your favorites, and click links to learn more about the science behind the pictures. We hope "The week in pictures” will not only highlight all our beautiful universe has to offer but also summarize the important stories of the past seven days in case you missed anything.

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