Its one of the many conspiracy theories that dont sit well with me and people are really confident this thing twice the size of jupiter exists.

http://video.google.com/videoplay?docid=2029221838829059074#

Short video (disregard the editing of who ever cut the clip from a seminar) showing a supposed Nasa footage of a comet twice the size of jupiter nearly hitting our sun in February 2003.

Shouldn't this thing be clearly visible from earth at that time,it just doesn't compute to me..Where is more evidence

So what you guys think