Keith Cooper is a freelance science journalist and editor in the United Kingdom, and has a degree in physics and astrophysics from the University of Manchester.
, came from an asteroid that had been heavily altered by water as well as smashed apart and reformed multiple times.
The next day, search teams were on-site. They were able to quickly retrieve fragments of the meteorite, in some cases within hours of landfall and beforehad been able to chemically alter the space rock in any serious way . The Winchcombe meteorite is classified as a CM carbonaceous chondrite, which is a carbon-rich and stony rock.
This suggests that the Winchcombe meteorite’s parent asteroid had been smashed apart and reformed multiple times, presumably following collisions with other asteroids early in thebefore getting smashed apart. In some cases, grains altered by water were found right next to unaltered grains, so quite jumbled had the breccia become. There were also unexpectedly high abundances of carbonate materials such as aragonite, calcite and dolomite.
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