Nasa scientists are searching for an invisible 'Death Star' that circles the Sun, which catapults potentially catastrophic comets at the Earth. By Richard Alleyne "The star, also known as Nemesis, is five times the size of Jupiter and could be to blame for the impact that wiped out the dinosaurs 65 million years ago. The bombardment of icy missiles is being blamed by some scientists for mass extinctions of life that they say happen every 26 million years. " Read the entire article: http://www.telegraph.co.uk/science/space/7429335/Search-on-for-Death-Star-that-throws-out-deadly-comets.html More reading:
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