A pilot project to test the DNA of migrant families at the US-Mexico border raises concerns about the rise of a genetic surveillance state. MARK RALSTON/GETTY IMAGES STARTING AS SOON as next week, the Department of Homeland Security will begin piloting a DNA testing program at the US-Mexico border intended to expose immigrants […]

This 1944 view of Saturn as seen from its largest moon, Titan, is one of Chesley Bonestell’s most famous paintings. The artist used his knowledge of astronomy to depict the ringed planet at the correct angular size for Titan’s orbital distance. (Credit: Courtesy Bonestell LLC.) Over the last half century, […]