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Pluto: Fire and ice

The Pluto flyby has shown us how well the little planet that could is served by its name. Pluto was the Roman god of the underworld (Hades in Greek), whose queen, Proserpina (Persephone) spent spring and summer with her mother, the earth goddess Demeter, in the upper world, and fall and winter with her gloomily handsome hubby, the lord of the dead. Indeed, this arrangement was the reason we have spring and summer, when the earth is recalled to life and warmth, and fall and winter, when the earth dies coldly to itself.

Pluto the planet has icy mountains and geological activity, suggesting heat somewhere at some point:

“That leaves rethinking how thermodynamics apply at the dwarf planet,” Mika McKinnon writes. ...

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Pluto is ready (or not) for its close-up

On July 14, NASA’s New Horizons spacecraft will fly by the former planet known as Pluto. Already, the spacecraft is sending back pictures that have scientists “drooling,” which is a bit like calling Marilyn Monroe a dumb blonde and then collecting every MM photo you can.

You see, back in 2006, a fraction of the members of the IAU (International Astronomical Union) voted to demote Pluto to dwarf status. (Something about size and crossed orbits and not owning its Kuiper Belt neighborhood, etc.) So even though tiny Pluto has five moons, it was out.

This did not sit well with the kind of Earthlings who champion the oppressed or are tiny themselves (card-writing schoolchildren, especially those who had to memorize “My Very Educated Mother Just Served Us Nine Pickles,” or some such to remember Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.) ...

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