What Parents Need to Know About the C.D.C.’s Covid School Guidelines

Trial shows that the antibiotic azithromycin does not prevent mild COVID-19 cases progressing to hospitalization or death

Beta (South Africa) variant may increase risk for COVID-19 hospitalization and death, large-scale South African study suggests

40 years after their discovery, scientists determine what causes Jupiter's auroras via data collected by the Juno spacecraft/ESA's XMM-Newton X-ray telescope. “Jupiter does this really weird thing where it pulses with a regular beat like clockwork."