Was 'Star Wars' Right? Can We Walk on Exoplanets?

TECH SPACE HUMAN EARTH HISTORY ANIMALS ADVENTURE VIDEO View Online Was 'Star Wars' Right? Can We Walk on Exoplanets? It's Star Wars Day (May the Fourth), and we're wondering whether the planets depicted in "The Force Awakens" were actually that far from reality. READ MORE New Nazca Geoglyph Found in Peru Measuring 98 feet in length, the geoglyph is of an animal, with many legs and spotted markings, sticking out its tongue. READ MORE WATCH VIDEO: Could a Bronze Age Skeleton Solve Stonehenge Mystery?   We still have no idea who built Stonehenge, why it was built, or how it was built. A 4,000-year-old body may change that. Lab Retrievers Hardwired to Crave Food There's a reason your lab is chubby: The breed has a genetic mutation that causes them to be food-obsessed. READ MORE WATCH VIDEO: Are Cat People Smarter Than Dog People? One group got the short end of the stick on intelligence tests. Could Pig Parts Save Human Lives? It's early days, but cross-species implantation -- plugging parts from one species into another -- is on the far horizon, and the humble pig may be our best bet to prolong life. WATCH Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! At Discovery Communications, we value your privacy. If you would like to be removed from future communications like this, please click here. Privacy Policy Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © Copyright 2016 Discovery Communications, LLC