Earth is overdue for collision with 'dinosaur-killer' asteroid, Nasa warns
8 years, 3 months ago

Earth is overdue for collision with 'dinosaur-killer' asteroid, Nasa warns

The Independent  

Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email SIGN UP I would like to be emailed about offers, events and updates from The Independent. And the planet is overdue for an extinction-level event involving a giant space object – such as an asteroid or comet – following a number of close encounters over the last 20 years, Dr Joseph Nuth said. Dr Nuth, speaking at Nasa’s Goddard Space Flight Centre in San Francisco, said that if a potentially dangerous object was on a crash-course with our planet “there’s not a hell of a lot we can do about it at the moment”, according to The Guardian. You could say, of course, we’re due.” Earth had a “close encounter” with a comet in 1996 and again in 2014, when one passed “within cosmic spitting distance of Mars”, he said. Dr Cathy Plesko, of Los Alamos National Laboratory, told the Guardian that humans could deflect an Earth-bound asteroid or comet with either a nuclear warhead or a “kinetic impactor, which is basically a giant cannonball”.

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