Dr. Rebecca “Becky” McCauley Rench

Dr. Rebecca “Becky” McCauley Rench is NASA’s Lead Scientist for Astrobiology, providing scientific leadership for the agency’s efforts to understand how life emerges, evolves, and may exist beyond Earth. She works across NASA mission and research communities to ensure life‑detection and habitability science remain central to exploration planning.

McCauley Rench grew up in West Virginia and is a first‑generation college graduate. She earned bachelor’s degrees in biology and chemistry from West Virginia University and completed her Ph.D. in geosciences and astrobiology at The Pennsylvania State University, where she studied microbial communities in low‑energy cave environments. Her early career included recognition as a Truman Scholar and Goldwater Scholar, an NSF Graduate Research Fellowship, and an internship with the Sample Analysis at Mars (SAM) team for the Mars Science Laboratory mission.

At NASA Headquarters, she coordinates astrobiology research across diverse scientific disciplines, strengthening integration among geologists, chemists, planetary scientists, biologists, and astronomers. She supports the development of scientific frameworks and technologies that advance biosignature detection and improve assessments of planetary environments.

McCauley Rench also leads community‑building efforts within NASA’s astrobiology programs, promoting interdisciplinary collaboration and broad engagement. Her background in planetary science and geobiology informs her work connecting NASA’s strategic goals with the research needed to support them.

In addition to her scientific leadership, she is an active public communicator who shares the excitement of astrobiology with diverse audiences. Outside of NASA, she enjoys board games and spending time with her three children.