News in Brief In Archives From Antibiotics’ Earliest Days, Scientists Find Bacteria Already Evolved Resistance Scientists suspect the farm use of penicillin was to blame. See More
News in Brief Viewfinder: A Memorial Concert in Manchester Ariana Grande performs on June 4th, 2017, in Manchester, England. See More
News in Brief Tear Gas on the Border Is Only the Beginning of a Standoff That Could Last Months Legal experts and migrants' rights advocates warn that the crisis will persist as migrants continue to arrive in Tijuana and other border towns. See More