In Memoriam

Nadine Gail Barlow passed away on August 17, 2020, after a two-year battle with cancer. A native of San Marcos, California, she was an alumna of the University of Arizona, where she received her Bachelor of Science and Doctoral degrees. After postdoctoral appointments at the Lunar and Planetary Institute and NASA’s Johnson Space Center in […]

H. Jay Melosh, a Distinguished Professor of Earth and Atmospheric Sciences at Purdue University, passed away on September 11, 2020. Melosh earned a degree in physics from Princeton University and a doctoral degree in physics and geology from the California Institute of Technology in 1972. His Ph.D. thesis concerned quarks, but his professional research interests […]

Dr. Brian J. O’Brien, a space scientist whose career spanned the entire history of space exploration, died in Australia on August 7, 2020, at the age of 86. His space instruments were carried on spacecraft ranging from the original Explorer missions to the lunar landings and his scientific contributions covered a period of more than […]

John T. Wasson, a world-renowned expert in meteorites and lunar rocks who had a mineral named after him, died at home in Los Angeles on September 8. He was 86. The professor emeritus of the Department of Earth, Planetary and Space Sciences at the University of California Los Angeles (UCLA) helped devise modern chemical classifications […]