Since 1986, Dr. Harris has served the space program, at NASA Ames Space Flight Center, NASA Johnson Space Flight Center and NASA Headquarters in various roles as research scientist, flight surgeon, astronaut, and advisor. During his NASA career, Dr. Bernard Harris conducted research in musculoskeletal physiology and clinical investigations of space adaptation, where he developed in-flight medical devices to extend Astronaut stays in space.

A veteran astronaut for more than thirty years, Harris served as mission specialist on STS-55 and was the Payload Commander on STS-63. He has logged more than 438 hours and traveled more than 7.2 million miles in space.

On February 9, 1995, Harris became the first African American to perform an extra-vehicular activity during the second of his two Space Shuttle flights.

佩吉·惠特森博士在爱荷华州比肯斯菲尔德郊外的农场长大，与身为农民的父母及兄弟姐妹共同生活。1969年，年幼的她通过电视观看人类首次登月直播后，便立志成为一名宇航员。

作为一名宇航员，她曾执行三次美国宇航局长期太空飞行任务，并担任Axiom Mission 2（Ax-2）任务指挥官，累计太空驻留675天，这一数字超越了美国所有宇航员乃至全球所有女性宇航员的纪录。

惠特森在NASA和Axiom Space公司拥有超过38年的航天与科学经验。 其职业生涯中曾担任多个要职，包括：NASA宇航员办公室主任、国际空间站（ISS）两度指令长、NASA宇航员遴选委员会主席、NASA运营处处长、NASA医学科学部及宇航员办公室副主管，以及美俄任务科学工作组联合主席。