All About Space

Why is Antarctica popular for finding meteorites?

- Meenakshi Wadhwa is a director and professor at the School of Earth and Space Exploratio­n at Arizona State University

Meteorites are scientific­ally valuable because they represent samples of a variety of asteroids and planets, like the Moon and Mars. Studying them in our laboratori­es has led to important insights into the origin and evolution of our Solar System and planets. At present, Antarctic meteorites dominate the inventory of the world’s known meteorites, and these samples have provided us with access to new types of planetary and asteroidal materials. Both hot and cold desert regions of the world are some of the best hunting grounds for meteorites. This is not because there are any more meteorites that fall there than any other place on Earth, but because the conditions in these places are such that meteorites are easier to find. Antarctica in particular has proven to be one of the best places in the world for finding meteorites. This is because the geological and environmen­tal conditions on some ice sheets in Antarctica serve to concentrat­e and preserve the meteorites that have fallen there.

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Frequent voyages are made to the Antarctic in order to build an inventory of meteorites
Right: Frequent voyages are made to the Antarctic in order to build an inventory of meteorites
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