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[i]The steel penetrator was fired at a 10-tonne cube of ice to simulate the surface of Jupiter's moon Europa. It hit the block at a speed of 340m/s and decelerated rapidly, but its structure remained intact, as did its interior components. Researchers say the penetrator would be a robust and inexpensive way to land instruments on other worlds. These might be seismometers to study the interior of Mars, or a miniature organic chemistry laboratory to check for microbial activity on icy Jovian satellites.[/i]
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