What are the similarities and differences between planets and dwarf planets?

A dwarf planet is usually a spherical body resembling a small planet. Objects in space are round because of their gravity. If they aren’t big enough, they don’t have enough gravity to crush them into ball shape. This asteroid, which came from outside our solar system system recently, looks like a big slab. So both... Continue Reading →

It's round. Big enough that it's own gravity makes it a sphere rather than a lump of coal or a cube or some other oddly shaped object. If you were on the Star Trek Enterprise, went into orbit around this object and looked outside your view screen, this is what you'd see. You have arrived... Continue Reading →

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