Stonehenge Was Once a Complete Circle

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Stonehenge Was Once a Complete Circle         Marks left behind by ancient, parched grass show that the iconic monument was once a perfect circle. Read More WATCH VIDEO: How Did They Build the Pyramids? With Water! Powerful things can often derive from simple principles, and this one's a doozy.  Xenon, Argon Banned for Athletes. Is Krypton Next?         Rare gases boost blood cells and mimic the effects of altitude. Read More WATCH VIDEO: Does Cutting Out Sex Improve Sports Performance? Get the skinny on how abstinence affects athletes. Origins of Giant Ocean Garbage Patches Revealed         Studying how water moves provides clues about where floating debris is coming from and a new way of looking at oceans. Read More WATCH VIDEO: What's an Ocean Garbage Patch? How much trash is in our oceans? And does it look more like a floating landfill or a plastic soup?  Spider Relative Lives on Your Face: Don't Panic         In what's likely to be unsettling news to, well, anyone, we have little mites eating and having sex in our pores. 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