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Published online 15 May 2003 | Nature | doi:10.1038/news030512-10
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Cracking idea gets to the core
Astronomer says time is ripe for an unmanned journey to the centre of the Earth.
We have sent probes to Mars, the outer planets and even beyond the farthest reaches of the Solar System - but never to the centre of our own world. Now a planetary scientist has a radical plan to redress the balance.
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