Has the ‘alien megastructure’ mystery been solved? Prison Planet.com Posted on September 11, 2017 Posted in Aggregated No Comments Tagged with Sci Tech Daily Mail | Astronomers say a ring of dust 1,400 light years away could explain the strange signals. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email