Meteorite from Sept. 25 fireball event recovered and presented

October 16, 2009 Meteorite from Sept. 25 fireball event recovered and presented

Enlarge

Composite all-sky camera image of the end of the fireball as seen from Hamilton (Camera #3, McMaster). Available below are movies of the event as seen by several of the SOMN cameras, as well as animations of the object's arrival at Earth. [click to enlarge]

When Tony Garchinski heard a loud crash just after 9 p.m. on Friday, September 25 he didn't think much of it. That is, until he awoke the next morning to find the windshield of his mom's Nissan Pathfinder with a huge crack in it. Making note of the 'unusual' rocks he later found on the car's hood, Garchinski chalked the incident up to vandalism and filed a police report.

It wasn't until two weeks later that his mother, Yvonne Garchinski, heard media reports that researchers from The University of Western Ontario were searching West Grimsby, Ont. for possible fragments of a freshly fallen meteorite. The Garchinskis realized who the real culprit was in the case of the broken windshield -- or more specifically, what.

The 'what' was a 46-gram (approx. the size of a golf ball) completely fusion-crusted (melted exterior) fragment of an 'ordinary chondrite' meteorite. Chondrites are arguably the most important type of meteorite because they are the least processed of meteorites and provide a window into the material which formed the early solar system.

The meteorite is estimated to be 4.6 billion years old.

Western Associate Professor Peter Brown, an expert in the study of and meteorite falls, and Phil McCausland, a postdoctoral fellow at Western's Centre for & Exploration, presented the found meteorite to the media today at the Garchinski home in Grimsby, with the family on hand to tell their remarkable story.

You need Flash installed to watch this ideo

amera #04 Tavistock

McCausland has been leading the university's ground search since seven 'all-sky' cameras of Western's Southern Ontario Meteor Network (SOMN) captured rare video footage of the meteor event on September 25.

"Having both the video and the sample is golden because we get the dynamic information and the orbital direction from the video, and by having recovered material on the ground, we can complete the picture. We can take a rock that we now have in hand and we can study it in the best laboratories in the world and we can put it back into its solar system context. We can put it back into where it came from," explains McCausland. "In all of history, only about a dozen meteorite falls have that kind of record."

Brown says, "Scientifically, it's equivalent to a sample return mission, which is sending a spacecraft out to a known location in the and bringing back a sample. In this case though, the sample comes to us. We don't have to spend huge sums of money to send a spacecraft to get the sample.

"We've worked out the orbit, where it came from, so it becomes a material within context. It's like a geologist who can pick up a rock which may be interesting, but if you know where it came from, that context, it means so much more. Most meteorites - we don't have the context. This one we do."

Yvonne Garchinski has loaned the 'pristine' meteorite sample to Western but it remains her property as meteorites found in Canada belong to the owner of the land upon which they are discovered.

The Western-led search continues in West Grimsby and both Brown and McCausland believe more meteorite fragments will be found. In fact, the Garchinski property is a mere 200 meters off the fall line of the the Western Meteor Physics Group calculated using data from its video, radar and sound detection systems.

Meteorites may best be recognized by their dark and scalloped exterior, and are usually denser than normal rock and will often attract a fridge magnet due to their metal content. Meteorites may be found in a small hole produced by their fall into soil.

Meteorites are not dangerous, but any recovered meteorites should be placed in a clean plastic bag or container and be handled as little as possible to preserve their scientific information.

Related story: Astronomers capture spectacular meteor footage and images (w/ Video)

Source: University of Western Ontario


   
Rate this story - 4.7 /5 (10 votes)

Rank Filter

Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

  • ealex - Oct 16, 2009
    • Rank: not rated yet
    "Meteorites are not dangerous"

    Yeah nothing dangerous about a flaming golf ball falling on your head from 10000 feet.

    Seriously though, 4.6 billion years, that's pretty much as old as the Earth. I'd have problems parting with that piece of rock. I have a 400 million year old trilobite sitting in my living room (probably a fake, but I can't bring myself to cut it in half) and I'm proud as hell to have it.
  • RobertKLR - Oct 16, 2009
    • Rank: not rated yet
    Some prankster vandal found a piece of the meteor and smashed the old lady's windshield with it. Dastardly!

October 16, 2009 all stories

Comments: 2

4.7 /5 (10 votes)

  • hide
  • Related Stories

  • Astronomers capture spectacular meteor footage and images (w/ Video)
    created Oct 07, 2009 | popularity not rated yet | comments 0
  • University of Western Ontario cameras capture 'fireball'
    created Oct 24, 2008 | popularity not rated yet | comments 0
  • Canadian astronomers on hunt for meteor
    created Mar 07, 2008 | popularity not rated yet | comments 0
  • Unusual meteorite found in Antarctica
    created Sep 19, 2006 | popularity not rated yet | comments 0
  • Manitoba meteorite hunter scores again
    created Jul 18, 2005 | popularity not rated yet | comments 0



  • hide
  • Relevant PhysicsForums posts

Other News

Climate 'Tipping Points' May Arrive Without Warning, Says Top Forecaster

Space & Earth / Environment

created 1hour ago | popularity not rated yet | comments 0 | with audio podcast

(PhysOrg.com) -- A new University of California, Davis, study by a top ecological forecaster says it is harder than experts thought to predict when sudden shifts in Earth's natural systems will occur -- a worrisome finding ...


A new 3-D map of the interstellar gas within 300 parsecs from the sun

A new 3D map of the interstellar gas within 300 parsecs from the Sun

Space & Earth / Astronomy

created 4 hours ago | popularity 5 / 5 (3) | comments 0 | with audio podcast

(PhysOrg.com) -- Astronomy & Astrophysics is publishing new 3D maps of the interstellar gas in the local area around our Sun. A French-American team of astronomers presents new absorption measurements toward ...


URI researcher calls for global effort to monitor marine pollutants

Space & Earth / Environment

created 2 hours ago | popularity 5 / 5 (1) | comments 1

A University of Rhode Island researcher who studies chemical pollutants in the marine environment has called on colleagues around the world to establish a global monitoring network to verify that the chemicals banned by the ...


Rho Ophiuchus cloud

Professor: We have a 'moral obligation' to seed universe with life

Space & Earth / Astronomy

created 12 hours ago | popularity 3.7 / 5 (19) | comments 35 | with audio podcast report

(PhysOrg.com) -- Eventually, the day will come when life on Earth ends. Whether that’s tomorrow or five billion years from now, whether by nuclear war, climate change, or the Sun burning up its fuel, the last ...


New international satellite observations help assess future earthquake risk in Haiti

New international satellite observations help assess future earthquake risk in Haiti

Space & Earth / Earth Sciences

created 4 hours ago | popularity not rated yet | comments 0

Virginia Key, Florida--Scientists at the University of Miami have analyzed images based on Synthetic Aperture Radar (SAR) observations taken before and just after Haiti's earthquake, on January 12. The images ...