Sound Asleep: NASA's Mars rover Spirit, seen here in an artist's rendering, has been hibernating through the the cold and dark Martian winter, and mission scientists aren't sure when its solar panels will have charged the batteries enough for it to wake up. NASA hide caption

itoggle caption NASA

A view of the personalisation of the adidas Jo'bulani official match ball for the 2010 FIFA World Cup Final between the Netherlands and Spain. This ball was named slightly different than the one that has been used throughout the tournament. Richard Heathcote/Getty Images Europe hide caption

itoggle caption Richard Heathcote/Getty Images Europe

You can thank this Tiktaalik fish forĀ  your bones and evolution for some of your health problems. copepodo/flickr.com hide caption

itoggle caption copepodo/flickr.com

Shots - Health News

Got Hemorrhoids? Blame Your Inner Fish

We've got a lot to thank a little fish for -- our necks, shoulders, elbows, wrists and knees, to name a few.

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An illustration of what the sea creature Tiktaalik may have looked like. Known as a "fishapod," Tiktaalik bridged the gap between sea living and land living creatures, and played an important evolutionary role on our journey to becoming human. Zina Deretsky/National Science Foundation hide caption

itoggle caption Zina Deretsky/National Science Foundation

Colorful fireworks explode in the air. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Emma Hendrickson, who is more than 100 years old, is the oldest competitor in the history of the United States Bowling Congress Women's Championships. Hendrickson wasn't part of the centenarian study, but the scientists found genetic signatures — gene patterns that were present in subgroups of centenarians with particular characteristics — that may predict who will join her in the centenarians club. Liz Margerum/The Gazette-Journal via AP hide caption

itoggle caption Liz Margerum/The Gazette-Journal via AP

Scientists recently mapped the louse genome. It has only 108 million letters of DNA, which is fewer than in other insects they've mapped. Courtesy Aurelie Veracx hide caption

itoggle caption Courtesy Aurelie Veracx

Called red currant tomatoes, these Solanum pimpinellifolium are actually a tomato cousin, in the nightshade family. The fruits are intensely tomato-flavored and very sweet. Harry Klee hide caption

itoggle caption Harry Klee

Scientists report they have made a living cell from DNA that was originally synthesized in a lab. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Someone who looks like this could be in your family tree. Chip Clark/Courtesy of the Smithsonian Institution hide caption

itoggle caption Chip Clark/Courtesy of the Smithsonian Institution