Ancient Martian Stream Bed Found

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Mars Rover Finds Bed of Ancient Flowing Stream         Scratch water off Curiosity's list of things to find in a two-year quest to learn if the planet most like Earth in the solar system could have supported microbial life. Read More WATCH VIDEO: Red Planet Looking at Mars inspired this week's "Why" question -- Why is Mars red? Giant Crocs Ruled Ancient Seas         The ravenous creatures were such effective killers that they've been compared to the most famous predator of the Dinosaur Era, T. rex. Read More WATCH VIDEO: Cat vs Gator Explained When a cat meets an alligator in a viral video...the cat wins? How is that possible? Is This Mona Lisa's First Smile?         Mathematics helped experts to identify a hidden Da Vinci technique and claim a portrait of a younger Mona Lisa was Da Vinci's. Read More WATCH VIDEO: Book Says Da Vinci Hid Biblical References Leonardo da Vinci may have used mirrors to hide biblical images in his most famous masterpieces. Pop Star Claims Sex With Ghost (and She's Not Alone)         While Kesha's alleged encounter may seem bizarre (or publicity-savvy),  many people have reported similar experiences. Psychologists may have an explanation. Read More WATCH VIDEO: New App Makes Bad Singers Better Be you a crooner or choking cat, this app can help you crank out the hits. From Our Sponsor 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