This video was compiled with videos from the SOHO website. They show various comets and planets moving in front of the SOHO imager. They are not UFO's. If a craft was being controlled intelligently it would not follow a predictable path...the elliptic in the case of the planets, and the calculated orbits of comets. If they are mimicking the movement of the planets and known comets, we wouldn't have a clue they are doing it.