Highlights advances/discoveries (and scientists responsible for them) in various science areas during 1983: space science (shuttle flights, Russia); astronomy (infrared satellite, inflationary universe); physics (W/Z particles); chemistry (carbon bonding); environment (acid rain, dioxins, El Nino); bioscience (chemical signals); paleontology (Pakicetus, lemur); genetics (gene transplants); medicine (artificial heart); and geoscience (tectonics, vulcanology). (JM)