John Glenn, the first American astronaut to orbit the Earth and a former U.S. senator, has died. He was 95.

Glenn was one of the original seven Mercury astronauts. His career included two space flights, 24 years as a U.S. Senator from Ohio, and run for president of the United States.

The new book "Gemini and Mercury Remastered" features iconic images from the earliest days of human space exploration ...