Earth's core: the enigma 1800 miles below us "Beneath our feet is a dense, chemically doped ball of iron roughly the size of Mars and every bit as alien. It's a place where pressures bear down with the weight of 3.5 million atmospheres, and where temperatures reach 10,000 degrees Fahrenheit - as hot as the surface of the Sun."
Editors Choice:
Not Editors Choice
Shortlist Date:
Tuesday, 29 May 2012 - 2:42pm
Shortlist Position:
General item
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