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RE: Effect of Potentially Hazardous Asteroids on Earth
Thanks for the link, it will help me more. Kudos to NASA for their time spent round the clock on space but i am still surprised at the fact that they only saw 2019 OK asteroid 24 hour to when it was going to pass by earth.
I think because it is like looking for a needle in a haystack. So much space, where do you look?