There appears to be several reflections and a generally 'washed-out' appearance to the video, like from low-contrast setting, or presence of light
behind the camera reflecting on a glass pane in front of the camera.
The 'orb' looks just like the round progress bar indicator (button) of YT. The proportions are eerily similar. On second thought, it could be the
internal optical elements of the camera being reflected by an out-of-focus small bug close to the camera itself.
At 0:58, a momentary reflection can be seen in the middle of the roof of the station wagon, but based on the constant size (therefore distance) of the
object, one should be able to see the moving reflection on the roof of the car, especially since the roof is convex.
The second rapidly moving object may be a moth (or bug) and may also have been the cause of the momentary reflection on the car roof.
14-9-2012 by gguyx because: additional