Garbage Patch Primer: What's an Ocean Gyre?

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Garbage Patch Primer: What's an Ocean Gyre?         Garbage floating in the Indian Ocean gyre is frustrating efforts to find Malaysia Airlines flight 370. Read More WATCH VIDEO: Homemade Sub Lets Anyone Explore the Ocean A non-profit wants to give anyone with an idea for undersea research a chance to use a submarine. Mars: The Muddy Red Planet         Some of Mars' lava fields may actually be massive mud flows, indicating that they weren't created by ancient volcanic activity. Read More WATCH VIDEO: Water Found on Mars ... FOR REAL! The Mars rover Curiosity discovers that Martian soil is 2 percent water. Solar Desert Tower 3D-Printed From Sand         Rising like a skeletal tree in the desert, this skyscraper calls for 3D-printed components made from sand and sun power. Read More WATCH VIDEO: First 'Liberator' 3D-Printed Gun Fired Defense Distributed produces and fires the world's first fully 3D-printed gun. Do Our Dreams Mean Anything?         Recurring dreams can be weird and confusing. Why do we dream about some things more often, and how should we interpret them? 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