claim: Pluto experiences drastic season changes due to an elliptical orbit (that takes 250 Earth years).
evidence: Like Uranus, Pluto rotates on its "side" in its orbital plane, with an axial tilt of 120°, and so its seasonal variation is extreme; at its solstices, one-fourth of its surface is in continuous daylight, whereas another fourth is in continuous darkness.
category: Pluto