Researchers Match Up 12 Meteorites with the Near-Earth Asteroids They Came From - by spacewriter
This image depicts the two areas where most of the asteroids in the Solar System are found: the asteroid belt between Mars and Jupiter, and the trojans, two groups of asteroids moving ahead of and following Jupiter in its orbit around the Sun. Some meteorites are known to come from this region.
Those tiny bits of space rock form a population of smaller objects floating—meteoroids—in the same orbit as the parent. Eventually, some make their way to Earth. Clearly, from their trajectories, they didn’t come all the way from the Main Belt, but from near-Earth space.The idea that some meteorites might not originate in asteroid collisions in the Main Belt is relatively new. The authors argue that some of those collisions happened between bodies in near-Earth orbits.
The Neuschwanstein meteorite, thought to come from a Near-Earth asteroid 2012 SW20. Courtesy Florian Schweidler. In addition, the authors suggest that the process of finding NEA-meteorite pairs could also indicate the existence of possible meteoroid showers with radiants close to their parent bodies. They are currently working on further research into this connection between such showers and their parent bodies.
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