Titan, the one place in the Solar System where the Titanic could have cruised with impunity

PIA17655 Kraken Mare cropPretty much everywhere on Earth where there is liquid water there is life. The biochemistry that powers our cells only runs in liquid water. In the Universe liquids are rare, like Little Red Riding Hood liquids are very particular, requiring conditions that are neither too hot nor too cold. Much of the Universe is near 0 K (-273 C), which is way too cold, or inside in stars at thousands of degrees, which is way too hot. Saturn’s moon Titan is at a refreshing – 180 C, which is too cold for liquid water, but methane is liquid at this temperature. The image to the left is of the surface of Titan and the dark regions are huge lakes of liquid methane and ethane.

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