* Astronomy

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Grimsby Meteorite

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Title: Fall of the Grimsby H5 Chondrite
Author: McCausland, P. J. A.; Brown, P. G.; Hildebrand, A. R.; Flemming, R. L.; Barker, I.; Moser, D. E.; Renaud, J.; Edwards, W.

Grimsby fall event: On the early evening of Sept 25, 2009 (01:03 UT Sept. 26, 2009), a brilliant fireball showing three major bursts was observed over southwestern Ontario and adjacent regions. Several witnesses under the entry path reported sonic booms and some described sound which was simultaneous with the fireball. The event was recorded by a network of automated cameras, radar and infrasound sensors operated by the University of Western Ontario. The solved trajectory and a peak brightness greater than that of the full moon indicates that a multihundred kg object on a 27 degree inclined Apollo-type orbit collided with the upper atmosphere at 21 km/s. Camera records as well as visual reports suggest that several ~kg mass fragments survived to the ground. Darkflight modeling of fragments from the endpoint and major burst locations along the fireball trajectory puts fragments of gram to multi-kilogram mass on the ground to the west and south of Grimsby, Ontario.

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2009 Ontario Meteor

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RE: Ontario Meteor

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Phil McCausland still believes there are big rocks from last fall's spectacular meteorite in the fields of Grimsby.
And the University of Western Ontario scientist figures he has a two- to three-week optimum period to find them.
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Search for space rocks comes up empty

An avid metal detector enthusiast, Brenda Found couldn't help but feel a twinge of envy over her friend's rare find.
Her buddy, Robin, unearthed the ultimate prize last fall: A meteorite hiding in a Winona baseball diamond.
Since then, the 71-year-old's been looking for her own chunks of magnet-loving space rock -- pieces of the 4.6-billion-year-old fiery ball that blasted into the Grimsby and Winona area on Sept. 25.
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Grimsby meteorite hunt

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Grimsby Meteorites

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A professional meteorite hunter from Portland, Ore., is about to put a piece of the famed Grimsby space rock up for sale on the Internet.
But Rob Wesel says he's not likely to get back the money he spent on the cross-continent adventure he took to find the loonie-sized 14.5 gram stone.
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Meteorite hunters now have a baker's dozen of space rocks that rained down on Grimsby two months ago.
But the scientist leading the University of Western Ontario's search believes there are still plenty of out-of-this-world stones that have yet to be recovered.
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