Alexandros Maragos, talented photographer and director from Patras, captured with his camera a rare optical phenomenon: an Airplane Contrail and a Sun Halo. NASA praised the picture of the rare phenomenon as the Astronomy Picture of the Day. The short description by NASA reads: What’s happened to the sky? Several common features of the daytime … The post Plane Contrail and Sun Halo: Rare picture by Alexandros Maragos in NASA gallery appeared first on Keep Talking Greece.