1989 Russian Phobos 2 Probe Still A Mystery

Russian Phobos 2 probe launched in late 1988 and sudden loss of craft near Mars moonlet, generates contro- versy to this day.  A meteor explanation has been offered.  However, in 1991,  Col. Marina Popovich released a last photo taken by Phobos 2 showing a cylindrical object, and possibly, cementing mission into permanent X-File status!