Goodnight, Philae

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Philae's Batteries Drained, Comet Lander Sleeps         The deep sleep was inevitable; Rosetta's lander has slipped into hibernation after running its batteries dry. Read More WATCH VIDEO: Rosetta's 10-Year Gravity Fling to Catch a Comet Check out the dizzying physics and helpful assist from gravity that made it possible. Photos: Animal Booties to Rival Kardashian's Butt         It's not just celebrities who know how to show off their assets. Read More WATCH VIDEO: Why These Cute Animals Are Illegal to Own Why can't we own exotic pets like monkeys and lions?  'Ice Tsunami' Smashes a House: Why?         A viral clip from last winter shows a sheet of ice smashing into a house. How does this happen? Read More WATCH VIDEO:  Is It Safe to Chew Ice? What does ice-chewing say about the people who chew it? And is all that harsh chomping harmful?  See-Through Mice Created in the Lab         Japanese scientists have found a way to make mice translucent, the better to see their internal organs when making laboratory observations. Julian explains how they've pulled off this feat. Watch Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2014 Discovery Communications, LLC