2 thoughts on “The Children of Fallen Adam”

  1. Yes, Pluto has been officially demoted. And rightly so. It’s a dwarf planet.

    My understanding is that to be a fully-fledged planet you have to be massive enough to clean up pretty much all of the other lumps of rock in your orbit. To be a dwarf planet you have to be massive enough to collapse under your own gravity to form something more or less spherical in shape.

    Pluto is a dwarf planet because its orbit is within the Kuiper belt (which is now known to contain other dwarf planets).

    Dwarf planets I personally recommend are Eris and Ceres. (NASA has launched a probe that is scheduled to reach Ceres in 2015.)

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