Space.COM has in its Debunking department, the following:
From the Debunking Department: Planet X will Not Destroy Earth in 2003
Among modern myths emerges one fact: Doomsayers never die. Their latest claims, bouncing around the Internet this summer, are that the long hypothesized Planet X will pass so close to Earth in May 2003 that its gravitational effects will spawn natural disasters that kill 90 percent of all earthlings.
The prophecy is led by people like Nancy Lieder, who says she "channels" aliens called Zetans (from the star Zeta Reticuli) who've explained all this to her.
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