Friday, July 5, 2013

Cosmic Cataclysm Signaled By Mysterious Burst Of Radio Waves




Before It's News | Popular Space





Cosmic Cataclysm Signaled By Mysterious Burst Of Radio Waves



Mysterious bursts of radio waves originating from billions of light years away have left the scientists who detected them speculating about their origins. The international research team, writing in the journal Science, rule out terrestrial sources for the four fast radio bursts and say their brightness and distance suggest they come from cosmological distances when the Universe was just half its current age. CSIRO's Parkes radio telescope, which has been used to confirm a population of Fast Radio Bursts, is shown superimposed on an image showing the distribution of gas in our Galaxy. An artist's impression of a single fast radio burst is shown located well away from the Galactic plane emission.









A Report Written by America's National Academy of Sciences Points Out, a Big Asteroid is Almost Certain to Hit Eventually - It Could Wipe Out Even Human Civilisation



How Do you Stop an Asteroid Hitting Earth? MOST asteroids in the solar system come nowhere near the Earth, and of those that do, most are so small that they burn up harmlessly in the atmosphere. But, as a report written by America's National Academy of Sciences points out, a big one is almost certain to hit eventually. Depending on how big it is, and where it comes down, it could wipe out a city, a country or possibly even human civilisation.






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