The European Space Agency says the asteroid could destroy a city and has a 2.2 per cent chance of hitting Earth.
Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of ...
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Live Science on MSNScience news this week: Hidden lakes and a 'city-killer' asteroidOur weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...
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