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Well why you're about the -- about your business on Monday we came oh so close -- taken a direct hit from an asteroid.
We are in space terms dangerously close means about 17 of the distance of the moon -- -- Scary scientists say the space rock is the same size as an asteroid and exploded in the Earth's atmosphere.
Above Siberia about a century ago that wiped out an 800 square mile up for well.
I was the sports.
Meat -- caucus and astrophysicist.
He's also the author of physics of the impossible how you doing served very good welcome back here I said 17 to the distance of the moon.
It it it sounds kind of close in space terms was it really.
It was a whisker in terms of astronomy this is the -- then this is the moon is simply raise the earth.
They came within about the distance of -- space satellites.
The good news is that it was a near miss we dodged the bullet the bad news is that -- it hit the earth.
It would have been the -- of -- twenty megaton hydrogen bomb.
It would have wiped out 500 square miles a real estate all of New York City and all of London.
If it had hit and I should mention every hundred years one of these things about the size of a football field.
Actually hits the -- Aren't there are some people up error responsible for for watching now for these things.
Well he caught astronomers with their pants down how many astronomers scanned this -- every night.
You could put them inside a McDonald's hamburger restaurant real -- you're talking about maybe 2030 people every night had this thankless job of scanning the heavens.
And only later this year and the end of this year NASA will finally sent up a satellite.
Scanned the heavens.
Because we live in the middle of a cosmic shooting gallery something this big skims the earth we now know about once every five years.
-- -- human history that's been the way it was however we didn't know about that.
We were blissfully unaware that these big boulders in space just graze the planet earth hit the -- perhaps once every hundred years in the army now we know.
You believe events and we're going to be hit by one of these things whether it's tomorrow or a thousand years from now could we do anything.
To stop it.
Right now the answer is no forget the movies like army get in and dug deep impact.
Our space shuttle cannot reach into deep space our space shuttle simply goes around the planet -- -- -- and around and around.
We can't even approach an asteroid timing at the earth from on his -- But that means of course that we physicists have made plans.
-- one day perhaps send a rocket to nudge an asteroid out of the way but that's still decades into the future.
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