http://bit.ly/1zfNXza Earth could be at higher risk of being hit by a comet than widely thought, according to astronomers who have suggested keeping a closer eye on distant objects. Most studies of potential hazards involved objects in the asteroid belt roughly between Mars and Jupiter, the researchers said. But they noted that the discovery in the last two decades of hundreds of giant comets dubbed “centaurs” requires expanding the list of potential hazards. Rosetta captures images of jet-blasting comet Read more These balls of ice and dust, typically 30-60 miles (50-100km) wide, have unstable, elliptical orbits that start far beyond Neptune, the most distant planet from the Sun. Their orbits cross those of Jupiter, Saturn, Uranus and Neptune, whose gravity fields occasionally deflect a comet towards Earth – once about every 40,000 to 100,000 years. Learn More: https://twitter.com/Graham__Hancock/status/679662472383590400 http://bit.ly/1RKUDBg
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12/25/15
12,800 Years Ago A Huge 'Centaur' Destroyed An Advanced Civilization of Pre-History
http://bit.ly/1zfNXza Earth could be at higher risk of being hit by a comet than widely thought, according to astronomers who have suggested keeping a closer eye on distant objects. Most studies of potential hazards involved objects in the asteroid belt roughly between Mars and Jupiter, the researchers said. But they noted that the discovery in the last two decades of hundreds of giant comets dubbed “centaurs” requires expanding the list of potential hazards. Rosetta captures images of jet-blasting comet Read more These balls of ice and dust, typically 30-60 miles (50-100km) wide, have unstable, elliptical orbits that start far beyond Neptune, the most distant planet from the Sun. Their orbits cross those of Jupiter, Saturn, Uranus and Neptune, whose gravity fields occasionally deflect a comet towards Earth – once about every 40,000 to 100,000 years. Learn More: https://twitter.com/Graham__Hancock/status/679662472383590400 http://bit.ly/1RKUDBg
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