Alexander Gerst is a German European Space Agency astronaut and geophysicist, who was selected in 20...

Richard Alan "Rick" Mastracchio is an American engineer and former NASA astronaut. He has flown on t...

Michael Scott Hopkins (born December 28, 1968) is a Colonel in the U.S. Air Force, and a current NAS...

Douglas Gerald Hurley is an engineer and retired NASA astronaut. He piloted Space Shuttle mission ST...

Christopher J. Ferguson is a Boeing commercial astronaut and a retired United States Navy Captain an...

Oleg Germanovich Artemyev (Russian: Олег Германович Артемьев) is a Russian Cosmonaut for the Russian...

Andrew Jay "Drew" Feustel is a geophysicist and a NASA astronaut. Following several years working as...

Richard Robert "Ricky" Arnold II is an American educator and a NASA astronaut. He flew on Space Shut...

Serena Maria Auñón-Chancellor is an American physician, engineer, and NASA astronaut. She has been i...

Rear Admiral Alan Bartlett Shepard Jr. was an American astronaut, naval aviator, test pilot, and bus...