This short video shows an object on an apparent collision course with the Sun. Taken 25 July 2014 with a hydrogen-alpha solar telescope, the object appears in upper right and moves down and left to near center, passing "behind" solar prominences. This video was slowed down by a factor of ten; the actual times show in the upper left (actual duration 0.7 seconds). What do you think this object could be? A comet? An asteroid?