FILE - In this Tuesday, Jan. 18, 1984 file photo, Sen. John Glenn, D-Ohio, answers questions from the press in Jackson, Miss. At left is his wife, Annie Glenn. Glenn travelled through the South seeking support for his presidential campaign. Glenn, the first U.S. astronaut to orbit Earth who later spent 24 years representing Ohio in the Senate, died Thursday, Dec. 8, 2016, at the age of 95. (AP Photo/Tannen Maury, File)

10 things to know about John Glenn

He broke the transcontinental air speed record, bursting from Los Angeles to New York City in 3 hours, 23 minutes and 8 seconds.