Dark Visitor

The resulting milder winter and cooler summers are a curse, not a blessing. Heavy "spring snows" will fall all winter long and not entirely melt in the colder following summer. Mathematical proofs of these facts are included in the scientific report section and appendix. The approaching black hole will never be visible in telescopes, but its trajectory is now known from observations of small perturbations in Pluto's orbit. If the authors' predictions are true, the global catastrophe that will begin in 2007 will be far worse than any that has ever occurred before.