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Earth Under Attack from Death Star
 in the same issue of The Sun that had an article on the need for larger bras in BritainAN invisible star may be circling the Sun and causing deadly comets to bombard the Earth, scientists said yesterday. The brown dwarf - up to five times the size of Jupiter - could be to blame for mass extinctions that occur here every 26 million years. The star - nicknamed Nemesis by Nasa scientists - would be invisible as it only emits infrared light and is incredibly distant. Nemesis is believed to orbit our solar system at 25,000 times the distance of the Earth to the Sun. As it spins through the galaxy, its gravitational pull drags icy bodies out of the Oort Cloud - a vast sphere of rock and dust twice as far away as Nemesis. These "snowballs" are thrown towards Earth as comets, causing devastation similar to the asteroid that wiped out the dinosaurs 65 million years ago. Now Nasa boffins believe they will be able to find Nemesis using a new heat-seeking telescope that began scanning the skies in January. Posted by: lord garth 2010-03-16 |
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