Mary Irwin is an expert on the topic of Noah’s Ark and has conducted more than 25 years of research on the subject. She traveled the world with her late husband, astronaut James Irwin, who served on the historic Apollo 15 flight. The pair climbed Mount Ararat numerous times looking for the ark and searched for biblical antiquities throughout the Middle East. In 1972, they founded the nonprofit Christian organization High Flight Foundation. Irwin has published four books on her life experiences.