Most of these are due to to the CCD overloading, which makes objects like Mercury, Venus or comets appear to "spike". If you have a digicam with
live preview, try pointing it towards a bright light, and you'll get the same effect. One or two are odd looking, but I don't think they are
anything unusual (ie alien craft).
Yep those are certainly planets, comets etc. In the Soho videos you can see the date change, images taken over a period of months. Nice video though,
but not UFOs.