An image recorded on the Moon during the Apollo 12 mission in 1969 shows the shadows of astronauts, along with a highlighted area above the horizon showing “unidentified phenomena,” according to the Defense Department. NASA/via Defense Department hide caption toggle caption NASA/via Defense Department Cold War reports of mysterious rotating saucers; recent sightings of metallic…

Canvas, the cloud-based learning management system used by more than 8,000 colleges and universities, including all top ten colleges in the U.S., is being held for ransom. A group called Shinyhunters has claimed responsibility for the hack and has given Canvas’ parent company, Instructure, until May 12 to reach a settlement, or else “everything is…