Earth as seen from the satellite GMS-5 near the summer solstice (Left), the autumnal equinox (Right), the winter solstice (Below Left), and the vernal (spring) equinox (March 18, 1999 -- Below Right).
June 23, 1998September 22, 1998
The North Pole is exactly at the top of each image; note how it's bathed in sunlight on the summer solstice, right on the day/night edge on the equinox, and in complete darkness near the winter solstice.
December 17, 1998March 17 1999

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