Steven J. Dick (born 1949) is an American astronomer, author, and former NASA Chief Historian. He has written extensively on astrobiology, cosmology, and the philosophical implications of extraterrestrial life.
Dick served as NASA’s Chief Historian from 2003 to 2009 and has held positions at the U.S. Naval Observatory and various universities. His books include The Biological Universe and Life on Other Worlds.
His work on “cosmotheology” explores how the discovery of extraterrestrial intelligence might affect religious thought. He has argued that such a discovery would have profound theological implications, potentially transforming human understanding of our place in the cosmos and our relationship to the divine.