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More time-lapse footage from the night of March 20, taken in the Goldstream Valley of Fairbanks, Alaska. Moon just hanging out in those high altitude reds on the left.

#alaska #aurora #auroraborealis #northernlights


Last night over the Goldstream Valley, Fairbanks. Not super bright, but one of the more colorful displays I've seen.

More recent photos: photos.lwpetersen.com/Recent-P…

#alaska #aurora #auroraborealis #northernlights #fairbanks


Water molecules bond at a tetrahedral angle of 109.5 degrees. That angle, repeated at the molecular level, is why every snowflake has six-fold symmetry. The hexagonal lattice structure of ice propagates outward as the crystal grows, with each arm following a closely similar thermodynamic path (small differences due to temperature and pressure over small distances).

These landed on my car window in Fairbanks.

#snowflake #macro #alaska #winter #ice #crystals