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Sci-fi Classic Screens at MoPA's POP Thursday

Some people fight invasive plants with chemicals and scorched-earth tactics. In Washington, D.C., graphic designer Patterson Clark turns them into art.

Do you think the problems that face California are bigger Democrat versus Republican or left against right? "California Crackup" is a new book that offers some solutions. We talk to the book's co-author, Mark Paul, and UCSD Political Scientist, Thad Kousser, about what they think could fix our broken government.

Modern day sperm whales have tiny teeth and eat squid. But this ancient sea monster devoured other whales. Researchers have discovered the gigantic head and 15-inch-long teeth of this sperm whale ancestor. Named for the author of Moby-Dick, Leviathan melvillei lived about 13 million years ago.

Conservators in Maryland are poring over a ship, thought to have been a cargo vessel from the 1700s, that was uncovered at the site of the World Trade Center. From the wooden ship's size to the tiny good luck charms found aboard, it's offering a new perspective on history.

In Oregon, a battle has erupted between farmers growing genetically engineered sugar beets and organic farmers who worry about cross-pollination. The question is whether the farms can be good neighbors.

College students and young voters played a big role in President Obama's election two years ago. Polls show they still support him and the Democrats, though not by the record margin they did in 2008.

A vegetarian diet can be healthy for kids, but parents need to learn nutrition basics to make sure their children get all of the nutrients they need, experts say. Iron is the nutrient vegetarians and vegans most often don't get enough of.

NASA experts are working with a group of San Diego teachers to craft lessons at their inner-city school. KPBS reporter Ana Tintocalis has more.

Summertime ice in the Arctic Ocean has been in quick retreat. There's a lot of uncertainty about how quickly it will melt away entirely in the summertime. Estimates range from 2013 to beyond 2100. The uncertainty is explained by the science behind the phenomenon of melting.