One of the questions before the U.S. Supreme Court on Tuesday is whether non-union members must pay for negotiating a contract they benefit from. Jonathan Ernst/Reuters/Landov hide caption

Nehida Bne Menneh stands amid the rubble of her home in a small Palestinian herding camp in the Israeli-occupied West Bank. It was destroyed for being in an area Israel long ago declared a closed military zone. Emily Harris/NPR hide caption

Genuine soba noodles are difficult to find in the U.S. iStockphoto hide caption

The round stingray is native to the eastern Pacific coast and is notorious for injuring swimmers and surfers. laszlo-photo/Flickr hide caption

Richard Warp uses an Emotiv headset paired with his invention, NeuroDisco, which translates brain electrical patterns into music. Josh Cassidy/KQED hide caption

A customer buys produce at the Euclid Market in the Boyle Heights neighborhood of East Los Angeles in December. The market was reopened in 2013 as part of a project to promote healthy eating among the city's Hispanic population. Courtesy of UCLA Fielding School of Public Health hide caption

A Latvian four-man bobsled team competes in the World Cup on Feb. 17, 2013, at the Sanki Sliding Center near Sochi, Russia. The track, which actually ascends in three places to slow the speed of the athletes, is being used for Olympic bobsled, skeleton and luge next month. Richard Heathcote/Getty Images hide caption