In a space-age first, two satellites have collided in orbit. Early on Wednesday morning, Sydney time, a Russian communications satellite and an American Iridium mobile phone spacecraft smashed into each other, 790 kilometres above Siberia.
The cosmic bingle left both write-offs. US Air Force Brigadier General Michael Carey, of US Strategic Command, said at least 600 pieces of wreckage had been observed circling the world.
Friday, February 13, 2009
how Big a Bang?
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