The Search for ExtraTerrestrial Intelligence (SETI) continues to listen for radio signals and has found nothing to report. But. A survey of the sky looking for planets may have found evidence of a civilization. There isn’t much to see, which is part of the point. Planets can be found by watching a star periodically dim. One star seems to have a pattern of dimming that is difficult to explain through natural causes but could be explained by a cloud of massive orbiting structures. Swarms of solar collectors and orbital environments have been proposed as one scenario for a large, technological civilization. Both the natural and artificial possibilities will be tested and challenged. But now we have something to look for and look forward to.
(Click on the photo for the link.)