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Seth Borenstein

FILE - In this July 3, 2008, file photo, New Mexico Tech professor Penny Boston crawls through the Mud Turtle Passage on the way to the Snowy River formation during an expedition in Fort Stanton Cave, N.M. Boston, who discovered extreme life in New Mexico caves in 2008, presented new findings on Friday, Feb. 17, 2017 of microbes trapped in crystals in Mexico that could be 50,000 years old. (AP Photo/Susan Montoya Bryan) (AP)

Biologists find weird cave life that may be 50,000 years old

Seth Borenstein
FILE - In this Feb. 26, 2010 file photo, an apple, stuffed animals, and flowers are among the items placed at a growing memorial to slain teacher Jennifer Paulson across the street from Birney Elementary School in Tacoma, Wash. When the economy tanks, school shootings rise, unlike other violent crime, a new study finds. A multi-disciplinary team of researchers at Northwestern University analyzed data from 379 shootings in schools, not just mass shootings or gang involved ones, between 1990 and 2013 and found an interesting correlation between changes in national and local unemployment rates and how frequent the shootings happen. (AP Photo/Ted S. Warren, File) (AP)

School shootings rise when economy struggles, study suggests

Seth Borenstein
FILE - In this Feb. 20, 2012, file photo, U.S. Sen. John Glenn talks with astronauts on the International Space Station via satellite before a discussion titled "Learning from the Past to Innovate for the Future" in Columbus, Ohio. Glenn, who was the first U.S. astronaut to orbit Earth and later spent 24 years representing Ohio in the Senate, has died at 95. (AP Photo/Jay LaPrete, File) (AP)

John Glenn, former astronaut and senator of Ohio, has died at 95

Seth Borenstein