Dr bernstein is a research scientist and deputy chief of the space science and astrobiology division at nasa ames research center where he studies the organic photochemistry of interstellar cometary ices Dr bernstein是美国太空总署ames research center的太空科学及太空生物分部的副主管,并且在天体化学实验室担任研究科学家,专门研究星际和彗星上冰层的有机光化学。