Shawana Kemp, lead singer for Shine and the Moonbeams. Courtesy of the artists hide caption

After Medgar Evers was murdered, his wife, Myrlie Evers, carried on his work. This photo shows Myrlie Evers and her children, Van, 9; Darrell, 16; and Rena, 14, in June 1969 in their Claremont, Calif., home. AP hide caption

Jeanne Pincha-Tulley, a Type 1 incident commander, addresses the media in the then-evacuated town of Idyllwild, as the Mountain Fire grows closer. Pincha-Tulley has a reputation for being frank and direct with the media and public. "For the next two days," she said, "the fire is going to put embers right over this town." Nate Rott/NPR hide caption

Could the images common in accounts of near-death experiences be explained by a rush of electrical activity in the brain? Odina/iStockphoto.com hide caption

Elon Musk's "Hyperloop" vehicle. Elon Musk hide caption

Apple's Garage Band for the iPad and iPhone includes virtual instruments, such as piano and drums, you can play like the real thing.   hide caption

This simulated image shows what information about a Higgs particle would look like in the proposed International Linear Collider. Norman Graf/interactions.org hide caption