Oort Cloud --The Oort cloud is an immense spherical cloud surrounding the planetary system and extending approximately 3 light years, about 30 trillion kilometers from the Sun. This vast distance is considered the edge of the Sun's orb of physical, gravitational, or dynamical influence. Within the cloud, comets are typically tens of millions of kilometers apart. They are weakly bound to the sun, and passing stars and other forces can readily change their orbits, sending them into the inner solar system or out to interstellar space. This is especially true of comets on the outer edges of the Oort cloud. The structure of the cloud is believed to consist of a relatively dense core that lies near the ecliptic plane and gradually replenishes the outer boundaries, creating a steady state. One sixth of an estimated six trillion icy objects or comets are in the outer region with the remainder in the relatively dense core.Oort Cloud sent two comets to earth,One was picked up by a Exosat orbiting venus about march 8th 1978,the estimated date it would hit earth was aproximately july 28th 1981.The only recorded sighting was a bleep in the radar over northwest North carolina. The other comet followed closley behind exosat until he was shifted off course due to poisonous radio waves coming from mars . After 14 months, the second comet appeared on the radar only a small distance from exosat. SInce winter of year 2005 these items have been missing, and presumed extinct. A recent sattelite image shows a soaring flash which looks like it could be the two comets joined togather. Some belive the image is merely another comet, others belive it is the two comets in route back to the oort cloud.((((((((((((((((((((((This is also Greg's personal page))))))))))))))))))
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