The claim: A 62-mile-wide mega comet has entered the solar system Expect some brilliant lights in the night sky this summer: The Delta Aquariid meteor shower, which started this month, will be ...

Get our newsletter! Like the newly-identified 2014 UN271, the NEOWISE comet pictured here is a long-period comet originating in the Oort Cloud. Photo by NASA Johnson via Flickr under CC BY-NC-ND 2.0 ...