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.
The statement was assembled in consultation with leaders of the Tohono O'odham Nation and the Pascua Yaqui Tribe and with Native American scholars at the university.
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.
Monitoring Earth's radiation budget allows scientists to know if the Earth is trapping or losing heat, which is important for understanding climate change.