August 4, 2015


Science & Technology

This find really rocks

Divers at a Russian lake have pulled out a 1.5-metre-wide, half-ton hunk of meteorite from the Chelyabinsk meteor that streaked across skies in February. The large black fragment smashed a six-metre-wide hole into the ice covering Lake Chebarkul. It could potentially be the most massive fragment of the dramatic fireball captured on video across the region. Even though this is a massive meteorite fragment, it's a tiny portion of the original missile, a roughly 17-metre-wide space rock that travelled about 64,000 kilometres per hour and vaporized roughly 24 kilometres above the surface, resulting in an explosion measured between 300 and 500 kilotons, roughly the same as a modern nuclear bomb. Fragments rained down from the skies and several such meteorites have been collected since then -- all of them much smaller than this specimen.

-- Los Angeles Times

Republished from the Winnipeg Free Press print edition October 19, 2013 D4

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