Bin Laden's Death Sparks Celebrations

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Osama Bin Laden's Killing Sparks Celebrations         Crowds in New York City and Washington, D.C. gathered in celebration within minutes of the announcement of Bin Laden's death. See the images. Read More WATCH VIDEO: 9/11 Remembered In Language The phrase "9/11" is now part of our national lexicon. Osama Bin Laden Death: Full Coverage         See the full story of Bin Laden's killing, the president's speech, images from New York City and Washington, D.C. , how 9/11 affected Americans and more in this news package. Read More WATCH VIDEO: Why Do We Fear Things? The origins of deep-rooted fear. Super Civilizations Might Live Off Black Holes         It's time to think far outside of the box regarding our preconceptions of how to find extraterrestrial civilizations. Read More WATCH VIDEO: Black Holes Did you know there's a black hole in the center of our galaxy? Car Engines Powered by Lasers         Is the price of gasoline taking a toll on your wallet? Make your drive greener and more fuel efficient with the help of lasers. Read More WATCH VIDEO: From Diesel to Vegetable Oil See a gas-guzzling truck converted to run on fryer oil. 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 © 2010 Discovery Communications, LLC