Tech Scientists explain why we’re just now learning about a giant meteor that exploded over Earth last year March 19, 2019March 19, 2019Brett Molina, USA TODAYComments Off on Scientists explain why we’re just now learning about a giant meteor that exploded over Earth last year A giant meteor exploded over the Bering Sea in December, the biggest blast believed to have happened since an event in Russia in 2013, says NASA.