A grizzly bear roams near Beaver Lake in Yellowstone National Park, Wyo., in 2011. Jim Urquhart/AP hide caption
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Friday
A map of the United States shows where and how much of the eclipse will be visible, including path of totality from Oregon to South Carolina. NASA hide caption
Patrick McGovern, scientific director of the Biomolecular Archaeology Project at the University of Pennsylvania Museum, delves into the early history of fermentation in his latest book. Courtesy of Alison Dunlap hide caption
Thursday
Researchers monitored the health of these wild bees, from the species Osmia bicornis. They nest inside small cavities, such as hollow reeds. Courtesy of Centre for Ecology & Hydrology hide caption
Pesticides Are Harming Bees — But Not Everywhere, Major New Study Shows
The bacterium that causes the plague travels around on fleas. This flea illustration is from Robert Hooke's Micrographia, published in London in 1665. Getty Images hide caption
Potential annual damages are shown on the county-level in a scenario in which emissions of greenhouse gasses continue at current rates. Negative damages indicate economic benefits. Hsiang, Kopp, Jina, Rising, et al./Science hide caption
C. diff infections, which rose for decades, are now falling, according to the CDC. David Phillips/Science Source hide caption
Wednesday
Boaty McBoatface undergoes preparations last year in Birkenhead, England. By the assessment of the British Antarctic Survey, Boaty discharged its duties on its inaugural voyage surpassingly well. Christopher Furlong/Getty Images hide caption
Billy Crook's commercial crabbing boat, Pilot's Bride. He says it's looking like it's going to be a good year for crabbing on the Chesapeake Bay. Selena Simmons-Duffin/NPR hide caption
Chesapeake Bay Dead Zones Are Fading, But Proposed EPA Cuts Threaten Success
A comprehensive study of air pollution in the U.S. finds it still kills thousands a year, and disproportionately affects poor people and minorities. Robert Nickelsberg/Getty Images hide caption
U.S. Air Pollution Still Kills Thousands Every Year, Study Concludes
New study shows child care centers don't necessarily hire the most qualified teachers. Caiaimage/Paul Bradbury/Getty Images hide caption
Child Care Centers Often Don't Hire The Most Qualified Teachers, Study Shows
Calls for tort reform in regards to medical malpractice are popular on the campaign trail. But research shows that costs from medical liability make up just 2 to 2.5 percent of total health care spending in the U.S. FangXiaNuo/Getty Images/iStockphoto hide caption
Tuesday
The ongoing debate over health care has many people wondering how changes will affect their coverage. Fanatic Studio/Collection Mix: Sub/Getty Images hide caption
Beehives in an apiary Daniel Milchev/Getty Images hide caption
Beekeepers Feel The Sting Of California's Great Hive Heist
San Francisco lactation counselor Caroline Kerhervé — with kids of her clients — during a weekly session of a new mothers' group she coached in May. Courtesy of Caroline Kerherve hide caption