NASA discovers Mercury hides 10-mile-thick layer of diamond
Mercury, the planet closest to the sun, has a 10-mile-thick mantle of pure diamond, according to NASA. The report, derived ...
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NASA Sun poster (PDF)
Use the link below to download a NASA/SDO poster showing different wavelengths and temperatures of the Sun in all its splendour. The Solar Dynamics Observatory (SDO) is a program run by NASA ...