Astronauts

K. Megan McArthur

National Aeronautics and Space Administration

Koichi Wakata

Japan Aerospace Exploration Agency

Konstantin Borisov

Russian Federal Space Agency (ROSCOSMOS)

Konstantin Feoktistov

Russian Federal Space Agency (ROSCOSMOS)

Konstantin Kozeyev

Russian Federal Space Agency (ROSCOSMOS)

Lane Bess

Blue Origin

Larry Connor

Axiom Space

Laura Shepard Churchley

Blue Origin

Laurel Clark

National Aeronautics and Space Administration

Lauren Sánchez

Blue Origin

Lawrence J. DeLucas

National Aeronautics and Space Administration

Lee Archambault

National Aeronautics and Space Administration

Lee Morin

National Aeronautics and Space Administration

Leland D. Melvin

National Aeronautics and Space Administration

Leonid Kadeniuk

National Space Agency of Ukraine

Leonid Kizim

Russian Federal Space Agency (ROSCOSMOS)

Leonid Popov

Russian Federal Space Agency (ROSCOSMOS)

Léopold Eyharts

European Space Agency

Leroy Chiao

National Aeronautics and Space Administration

Lev Dyomin

Russian Federal Space Agency (ROSCOSMOS)

Lina Borozdina

Virgin Galactic

Linda M. Godwin

National Aeronautics and Space Administration

Lingdong Song

China National Space Administration

Lisa Nowak

National Aeronautics and Space Administration

Little Earth

SpaceX

Liu Boming

China National Space Administration

Liu Wang

China National Space Administration

Liu Yang

China National Space Administration

Lloyd Hammond

National Aeronautics and Space Administration

Lodewijk van den Berg

National Aeronautics and Space Administration

Loral O'Hara

National Aeronautics and Space Administration

Loren Acton

Lockheed Martin

Loren Shriver

National Aeronautics and Space Administration

Luca Parmitano

European Space Agency

Luke Delaney

National Aeronautics and Space Administration

Luke Mays

Virgin Galactic