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German schoolboy, 13, corrects
NASA's asteroid figures: paper
Berlin -
A 13-year-old German schoolboy corrected NASA's estimates on the
chances of an asteroid colliding with Earth, a German newspaper
reported Tuesday, after spotting the boffins had miscalculated.
Nico
Marquardt used telescopic findings from the Institute of
Astrophysics in Potsdam (AIP) to calculate that there was a 1 in 450
chance that the Apophis asteroid will collide with Earth, the
Potsdamer Neuerster Nachrichten reported.
NASA had previously estimated the
chances at only 1 in 45,000 but told its sister organisation, the
European Space Agency (ESA), that the young whizzkid had got it
right.
The schoolboy took into
consideration the risk of Apophis running into one or more of the
40,000 satellites orbiting Earth during its path close to the planet
on April 13 2029.
Those satellites travel at 3.07
kilometres a second (1.9 miles), at up to 35,880 kilometres above
earth -- and the Apophis asteroid will pass by earth at a distance
of 32,500 kilometres.
If the asteroid strikes a satellite
in 2029, that will change its trajectory making it hit earth on its
next orbit in 2036.
Both NASA and Marquardt agree that
if the asteroid does collide with earth, it will create a ball of
iron and iridium 320 metres (1049 feet) wide and weighing 200
billion tonnes, which will crash into the Atlantic Ocean.
The shockwaves from that would
create huge tsunami waves, destroying both coastlines and inland
areas, whilst creating a thick cloud of dust that would darken the
skies indefinitely.
The 13-year old made his discovery
as part of a regional science competition for which he submitted a
project entitled: "Apophis -- The Killer Astroid." --
AFP
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