A cross-section of skeletal muscle in this light micrograph shows the individual, parallel muscle fibers (red). These fibers work in concert to power movement. Thomas Deerinck, NCMIR/ScienceSource hide caption
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Wednesday
Whether the error in Supreme Court Justice Antonin Scalia's recent dissent was originally his fault or a clerk's doesn't make it less cringeworthy. Alex Wong/Getty Images hide caption
Wild bees, such as this Andrena bee visiting highbush blueberry flowers, play a key role in boosting crop yields. Left photo by Rufus Isaac/AAAS; Right photo courtesy of Daniel M.N. Turner hide caption
A blue whale carcass washed up last week in Trout River, Newfoundland, Canada. Don Bradshaw/Courtesy of Don Bradshaw/NTV News hide caption
Need a hand with those dishes? iStockphoto hide caption
The Golden Goose will retail for around $24. Courtesy Y Line Product Design hide caption
Tuesday
Even before you were a twinkle in your mom's eye, what she ate — and didn't eat enough of — may have helped shape you. George Marks/Getty Images hide caption
Tornadoes killed at least 17 people on Sunday and Monday. But some managed to stay safe in underground shelters like the one at right in Vilonia, Ark. Karen E. Segrave/AP hide caption
Monday
An artist's rendering depicts the satellite ISEE-3/ICE during its planned lunar fly-by in August 2014. Mark Maxwell/Courtesy ISEE-3 Reboot Project hide caption
Sulfur-rich foods, such as cabbage, bok choy and kale, can be popular with gut bacteria. And we all know how much the critters enjoy beans. Meg Vogel/NPR hide caption
A line of fire turns brown grass into black earth. Dan Charles/NPR hide caption
Fire-Setting Ranchers Have Burning Desire To Save Tallgrass Prairie
Sunday
Mark Kelly (left) will stay on Earth while his brother, Scott Kelly, spends a year on the International Space Station. NASA will test how the environments affect them differently. NBC NewsWire/NBCU Photo Bank via Getty Images hide caption
A cast of a Tyrannosaurus rex skull greets visitors as they enter the Smithsonian Museum of Natural History in Washington. J. Scott Applewhite/AP hide caption