July 7, 2021 Researchers Find Evidence of a Coronavirus Epidemic 20,000 Years Ago An ancient coronavirus outbreak in East Asia could help researchers identify viruses that have caused epidemics in the past and may do so in the future.
July 6, 2021 Methane in the Plumes of Saturn's Moon Enceladus: Possible Signs of Life? An unknown methane-producing process is likely at work in the hidden ocean beneath the icy shell of Saturn's moon Enceladus, suggests a new study co-authored by UArizona scientist Régis Ferrière.