Friday, February 19, 2010

Hot Planets

Being the nerdy sciency type, i've been watching a documentary on the solar system. It reminded me about the planet Venus.

As we know from school, Venus is about halfway between Mercury (average temperature 167°C) and Earth (15°C). So we might expect Venus to be somewhere between fifty and a hundred. However, with an atmosphere composed mostly of carbon dioxide, the average Venusian temp is 464°C.
[source: NASA planetary data sheet]

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