See auroras shot by astronaut Zena Cardman, commander of NASA's SpaceX Crew-11 mission, from the International Space Station. | CNN

Go onboard Apollo 8 in 1968 as the "Earthrise" photograph was taken. The audio captures astronauts Bill Anders, Jim Lovell, and Frank Borman all working to capture the iconic view on camera. Andy Saunders, author of "Apollo Remastered" and "Gemini and Mercury Remastered," tells the stories behind some of NASA's historic photographs. Watch this Saturday at 5 PM ET on C-SPAN 2 American History TV. | American History TV