CHAPEA Mission 2 Medical Officer Conducts Simulated EVA

CHAPEA mission 2 medical officer, Ellen Ellis, collects samples during an extravehicular activity, also known as a spacewalk. Credit: NASA

jsc2026e403171 (Feb. 27, 2026) -- CHAPEA mission 2 medical officer, Ellen Ellis, collects samples during an extravehicular activity, also known as a spacewalk. Credit: NASA