Astronaut Sheyna Gifford Sheyna Gifford, the crew doctor for the HI-SEAS simulated Mars mission, intends to become the first Jewish astronaut to set foot on Mars. Judith Resnik The second female American astronaut to travel into space, Judith Resnik is remembered for her death in the tragic Challenger explosion. How to cite this pageJewish Women's Archive. "Astronaut." (Viewed on July 31, 2016) <http://jwa.org/taxonomy/term/23139>.