Polar Vortex Behind U.S. Cold Blast

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Polar Vortex Behind U.S. Cold Blast         It can swallow half a continent in one bite, but there's a lot more than just weather behind this wintry beast. Read More WATCH VIDEO: Planets Shed Light on Earth's Weather Using the other planets as weather labs, meteorologists get a feel for how things work on Earth. Weird Small 'Puffed-Up' Exoplanet Discovered         NASA's Kepler space telescope makes what could be its strangest exoplanetary find. Read More WATCH VIDEO: The Hunt for a Second Earth NASA's Kepler is doing a bang-up job of finding planets just like Earth. How Icebreakers Work and Why They Get Stuck         America's only active polar icebreaker has been dispatched to Antarctica to free a Russian ship stuck in the ice. Read More WATCH VIDEO: Crossing Antarctica: Making the Journey Is there a such thing as an easy way to get across one of the world's most hostile environments? What Your Drink Says About Your Politics: Video         You can predict a person's political party based on what they drink! New research connects alcohol preferences to politics. 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