>>6531010In 1990, Victor Clube, an astrophysicist, and Bill Napier, an astronomer, published The Cosmic Winter, a book in which they describe performing orbital analyses of several of the meteor showers that hit Earth every year. Using sophisticated computer software, they carefully looked backward for thousands of years, tracing the orbits of comets, asteroids, and meteor showers until they uncovered something astounding. Many meteor showers are related to one another, such as the Taurids, Perseids, Piscids, and Orionids. In addition, some very large cosmic objects are related: the comets Encke and Rudnicki, the asteroids Oljato, Hephaistos, and about 100 others. Every one of those 100-plus cosmic bodies is at least a half-mile in diameter and some are miles wide. And what do they have in common? According to those scientists, every one is the offspring of the same massive comet that first entered our system less than 20,000 years ago! Clube and Napier calculated that, to account for all the debris they found strewn throughout our solar system, the original comet had to have been enormous. … Clube and Napier also calculated that, because of subtle changes in the orbits of Earth and the remaining cosmic debris, Earth crosses through the densest part of the giant comet clouds about every 2,000 to 4,000 years. When we look at climate and ice-core records, we can see that pattern. For example, the iridium, helium-3, nitrate, ammonium, and other key measurements seem to rise and fall in tandem, producing noticeable peaks around 18,000, 16,000, 13,000, 9,000, 5,000, and 2,000 years ago. In that pattern of peaks every 2,000 to 4,000 years, we may be seeing the “calling cards” of the returning mega-comet.
