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Secret files reveal MI5 spent 50 years hunting UFOs in bid to steal alien tech to make super-weapons?
They feared Russia already had flying saucers!
NASA is searching for meteorites that splashed down into the Pacific Ocean & here’s why
In 2013, an asteroid over 50 feet across and weighing some 10,000 metric tons slammed into Russia, unexpectedly
ESA wants to send a spacecraft to watch asteroid deflection experiment
The odds of Earth being struck by an asteroid are remote, but the effects of such collision can range up to a planetary catastrophe
