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Peeping Mimas

Peeping Mimas

Saturn's moon Mimas peeps out from behind the larger moon Dione in this view from the Cassini spacecraft. Mimas (246 miles, or 396 kilometers across) is near the bottom center of the image. Saturn's rings are also...
Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.
Quote of the Day
To suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I confess, absurd in the highest degree.

- Charles Darwin
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