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Question:
Would meteors ever hit the Earth?



Replies:
YES! Meteors enter the Earth's atmosphere all the time: most are so small that they burn-up in the atmosphere; if they are large enough to survive and hit the ground, they become "meteorites."

A little history (in chronological order):

1) 65 million years ago: one theory scientists use to explain the extinc- tion of the dinosaurs is a large meteor, asteroid, or comet hitting the Earth. Evidence for the crater such an impact would have left has recently been found in the Yucatan Peninsula area.

2) a few tens of thousands of years ago: Meteor Crater was formed in Arizona. It is about one kilometer wide. I recently saw a similar but older crater in the Altiplano of Bolivia.

3) early this century: a huge fireball hit a remote region of Siberia.

Fun fact: the Earth gains about a million kilograms of mass per day from meteors!

Hawley


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