Yuri Gagarin was the first person to write a diary in space during his historic Vostok 1 mission in 1961.

Neil Armstrong kept a diary called the 'Moon Journal' during the Apollo 11 mission, documenting his experiences and observations on the lunar surface.

Michael Collins wrote the book 'Carrying the Fire: An Astronaut's Journeys' based on his diaries from the Apollo 11 mission, where he served as the command module pilot.

Sally Ride kept a diary called the 'Space Diary' during her space shuttle mission in 1983, sharing her experiences as the first American woman in space.

Chris Hadfield wrote the book 'An Astronaut's Guide to Life on Earth' based on his diaries from his time spent on the International Space Station.

Buzz Aldrin kept a diary called the 'Lunar Journal' during the Apollo 11 mission, documenting his experiences and observations on the lunar surface.

Tom Wolfe wrote the book 'The Right Stuff' based on his experiences as a test pilot and astronaut, drawing inspiration from the diaries and accounts of several astronauts.

Scott Kelly kept a diary called the 'Year in Space Diary' during his year-long mission on the International Space Station, sharing his experiences and reflections on living and working in space for an extended period.

Scott Kelly wrote the book 'Endurance: A Year in Space, A Lifetime of Discovery' based on his diaries from his year-long mission on the International Space Station.

Peggy Whitson kept a diary called the 'Space Station Diary' during her record-breaking stay on the International Space Station, sharing her experiences and insights as a veteran astronaut.

Mary Roach wrote the book 'Packing for Mars: The Curious Science of Life in the Void' based on her experiences in space, drawing inspiration from the diaries and accounts of several astronauts.

Mae Jemison kept a diary called the 'Space Diary' during her space shuttle mission in 1992, sharing her experiences as the first African American woman in space.

Mark Kelly wrote the book 'A Gravity Boy: My Life in Space' based on his experiences as an astronaut, drawing inspiration from his diaries and personal reflections.

Jim Lovell kept a diary called the 'Apollo 13 Diary' during the Apollo 13 mission, documenting the challenges and triumphs of the crew as they faced a life-threatening situation in space.

Robert Kurson wrote the book 'Rocket Men: The Daring Odyssey of Apollo 8 and the Astronauts Who Made History' based on his research and interviews with the Apollo 8 astronauts, drawing inspiration from their diaries and personal accounts.