It's the Jupiter Effect all over again! Or did Chuck Norris revise his 1000 years of darkness prediction?
At least Y2K was semi plausible. I think some VCR timers didn't work or something. ;)
You don't have to be Carl Sagan to know there isn't anything big enough between the Earth and the Sun to blot it out for days. Would be a cool way for some aliens to get our attention though!