By Miriam Raftery

December 24, 2012 (Mount Helix) -- This Christmas Eve, enjoy Tom Lemon's gift to our readers.  I've seen shadows cast by clouds on the earth below, but I'd never before seen shadow on top of the clouds.

Lemon snapped this unusual image from Mount Helix, looking down on pink-tinged clouds early in the morning to see the shadow of the mountain cast on the surface of the clouds.