Astronauts

Kalpana Chawla

National Aeronautics and Space Administration

Karen Nyberg

National Aeronautics and Space Administration

Karl Henize

National Aeronautics and Space Administration

Karol J. Bobko

National Aeronautics and Space Administration

Karsen Kitchen

Blue Origin

Kathleen Rubins

National Aeronautics and Space Administration

Kathryn C. Thornton

National Aeronautics and Space Administration

Kathryn D. Sullivan

National Aeronautics and Space Administration

Kathryn "Kay" Hire

National Aeronautics and Space Administration

Kathryn P. Hire

National Aeronautics and Space Administration

Katya Echazarreta

Blue Origin

Katy Perry

Blue Origin

Kayla Barron

National Aeronautics and Space Administration

Keisha Schahaff

Virgin Galactic

Keith Colmer

Virgin Galactic

Kellie Gerardi

International Institute for Aeronautical Sciences

Kelly Latimer

Virgin Galactic

Ken Baxter

Virgin Galactic

Ken Bowersox

National Aeronautics and Space Administration

Ken Mattingly

National Aeronautics and Space Administration

Kenneth Cockrell

National Aeronautics and Space Administration

Kenneth D. Cameron

National Aeronautics and Space Administration

Kenneth Ham

National Aeronautics and Space Administration

Kenneth Lafferty Hess

Blue Origin

Kenneth S. Reightler Jr.

National Aeronautics and Space Administration

Kent Rominger

National Aeronautics and Space Administration

Kerianne Flynn

Blue Origin

Ketty Maisonrouge

Virgin Galactic

Kevin A. Ford

National Aeronautics and Space Administration

Kevin P. Chilton

National Aeronautics and Space Administration

Kevin R. Kregel

National Aeronautics and Space Administration

Kimiya Yui

Japan Aerospace Exploration Agency

Kirill Peskov

Kjell N. Lindgren

National Aeronautics and Space Administration

Klaus-Dietrich Flade

German Aerospace Center

Klim Shipenko

Russian Federal Space Agency (ROSCOSMOS)