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K. Megan McArthur
Born (1971-08-10) August 10, 1971 (age 51)
Status Active
Nationality American
Occupation Oceanographer
Space career
NASA Astronaut
Time in space
12 days, 21 hours, 38 min.
Selection 2000 NASA Group
Missions STS-125
Mission insignia
STS-125 patch.svg

Katherine Megan McArthur (born August 10, 1971) is an American astronaut for NASA. She is married to astronaut Bob Behnken.


Katherine Megan McArthur was born in Honolulu, Hawaii. Her parents were Don and Kit Macarthur. Her family moved near San Francisco, CA. She attended St. Francis High School in Mountain View, CA. She went to college at the University of California, Los Angeles. She studied Aerospace Engineering. After college she went to school more and earned a PhD. She got a PhD in Oceanography at University of California, San Diego. As a child she always wanted to become an astronaut.


In 2000, McArthur started working at the Carter training facility in Texas. In 2002, she got her phD. Also she started working at the astronaut office shuttle operations branch. In 2009, she went on a space journey. It lasted 13 days. Her job was to fix the Hubble Space Telescope. She loved seeing earth from space. She also thought that “we should take action for our earth.” After the space mission was over, she continued to work for NASA. She worked to get more women into NASA. McArthur believed that if you set your mind to anything, you can accomplish it.

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