The Oort Cloud, long-thought to be the home of icy objects, may contain more rocky bodies than astronomers thought.
Denis Vida, study lead author, Western University.,” published in Nature Astronomy. The lead author is Denis Vida, a meteor physics postdoctoral researcher at Western University in London, Ontario, Canada.
This image of the fireball is from the Global Fireball Observatory camera at Miquelon Lake Provincial Park, Alberta. Image Credit: University of Alberta. With all these ground-based and satellite-based data, Vida and his colleagues understood they were dealing with something unusual.Hadrien Devillepoix, Curtin University, Australia, principal investigator of the GFO
These images show the fireball as seen from the two GFO stations. It was observed for a total of 2.4 seconds with a path length of 148.5 km. Top: Miquelon Lake. Bottom: Vermilion . The fireball is moving left to right, and the periodic breaks in the fireball are used to encode the absolute time to an accuracy of 1 ms. Image Credit: GFO/Vida1 and penetrated down to a height of 46.5 km, just inside the stratosphere. An icy object should never have made it that close to Earth.
The question this study poses is, “How did this chunk of rock originate in the Oort Cloud?” Finding an answer to that will shed more light on our Solar System’s formation because the existence of the icy bodies that make up the Oort Cloud is a fundamental part of our understanding.
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