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October 29, 2009

Holes in Earth's defences

A high altitude explosion reveals the Indians and the Chinese have some work to do getting the planet's asteroid defences in order.

As the US government ponders a strategy to deal with threatening asteroids, a dramatic explosion over Indonesia has underscored how blind we still areMovie Camera to hurtling space rocks.

On 8 October an asteroid detonated high in the atmosphere above South Sulawesi, Indonesia, releasing about as much energy as 50,000 tons of TNT, according to a NASA estimate released on Friday. That's about three times more powerful than the atomic bomb that levelled Hiroshima, making it one of the largest asteroid explosions ever observed.

Posted by Ghost of a flea at October 29, 2009 08:22 AM