The Jupiter Effect theory effectively crushes an astrophysicist's reputation.

Alleged judgment day: 3/10/1982

Conspiracy theorists love to look at planet alignments as a sign that something bad is going to happen. In 1974, John Gribbin, who had a Ph.D in astrophysics, and Stephen Plagemann published The Jupiter Effect. In the book, the two authors claim that on March 10, 1982, all nine of the planets would align, resulting in a gravitational pull that would cause a shitload of natural disasters.

Unsurprisingly, the day came and went and nothing catastrophic happened. Years later, Gribbin would regret writing the book, saying, "I don't like it, and I'm sorry I ever had anything to do with it." D'oh!