Will the Sun Rip Off Comet ISON's Tail?

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Will the Sun Rip Off Comet ISON's Tail?         Comets that stray too close to the sun have a very uncertain future. Some live to tell the tale, while others literally lose their tails. Read More WATCH VIDEO: Doomsday Asteroid How can we avoid the same fate as the dinosaurs? How to Map the Wind         Visualizing the wind as it changes through the day has never been easier -- or so hypnotic. Read More WATCH VIDEO: Are Wind and Solar Energy Worth the Effort? Incorporating solar panels and wind energy into our outdated electrical grid is not worth the cost, critics say. Curiosity Back to Dominating Mars After Hiccup         It's hard being a robot exploring another world, as NASA's Mars Science Laboratory has proven this month. Read More WATCH VIDEO: Curiosity Rover Finds Possible Life on Mars Could life have existed on Mars even before it flourished on Earth?  Why We Can't Tickle Ourselves: Video         Ever try to tickle yourself? It doesn't work! Here's why. 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 © 2013 Discovery Communications, LLC