Nik Wallenda Walks Between Two Chicago Skyscrapers

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Nik Wallenda Walks Between Two Chicago Skyscrapers         Daredevil Nik Wallenda broke two world records when he crossed the Chicago skyline on tightropes, without a safety harness. Read More WATCH VIDEO: 3 Biggest Daredevil Fails Ever From walking a tightrope to skydiving from the edge of our atmosphere, we take a look at what it means to be a daredevil. SpaceShipTwo's Rocket Engine Did Not Cause Fatal Crash         It wasn't SpaceShipTwo's hybrid rocket motor that caused the fatal crash, the accident investigation agency reported Sunday. Read More WATCH VIDEO: Top 3 Space Tourist Fears One of Virgin Galactic's maiden space travelers describes his three biggest fears about this sub-orbital spaceflight. 10 Things That Kill the Ebola Virus         The Ebola virus is no match for these 10 things that can kill it upon direct contact. Read More WATCH VIDEO: How Does Ebola Kill People? How exactly does the Ebola virus take human lives? Step Away From the Hand Sanitizer         Using hand sanitizers can also increase the skin's absorption of BPA (Bisephenol A), which is used in nearly all hard plastics. Its key component, triclosan, isn't so great either. 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