Are the exact measurements known of how big a meteor needs to be to breach the atmosphere and land on Earth versus burn up in it and disappear?
In: Planetary Science
Burning up in the atmosphere or making it to the ground in one piece aren’t the only possible outcomes. Sometimes meteors explode in the atmosphere, [as happened with the Tunguska event in 1908](https://en.m.wikipedia.org/wiki/Tunguska_event). If the meteor makes it to the ground but not in one piece, does that count?
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