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mission specialist

American

noun

U.S. Aerospace.

the crew member of a space shuttle who is assigned primary responsibility for carrying out operations related to the payload of the shuttle.

Etymology

Origin of mission specialist

First recorded in 1975–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They shared some maple cookies brought by Canadian Space Agency and Artemis II mission specialist astronaut Jeremy Hansen.

From Los Angeles Times • Apr. 9, 2026

Artemis II's crew of four is made up of Nasa commander Reid Wiseman, pilot Victor Glover and mission specialist Christina Koch.

From BBC • Mar. 13, 2026

Commander Jessica Meir and mission specialist Andrey Fedyaev are each flying for the second time.

From Science Daily • Feb. 2, 2026

After rigorous training, he’s launched into space in 2009 as a mission specialist aboard the shuttle Discovery.

From Seattle Times • Sep. 14, 2023

This time, she flew on NASA's Atlantis as a mission specialist.

From "Women in Space" by Karen Bush Gibson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023