Snow penitents - spikes of ice - line the slope of a rocky mountain in the Bolivian Andes. It's a close-up photograph of the phenomenon with a cloudy blue sky in the background, looking up hill.

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   SETI Institute (setiinstitute@mastodon.social)'s status on Saturday, 26-Oct-2024 12:41:16 JST SETI Institute

   #PPOD: Like an army of ghosts, snow penitents conquered the slopes of a 5,300-m-high volcano in the Bolivian Andes. Sublimation and wind erosion give ice this ghostly appearance. Some were almost as tall as the photographer (5' 7"). They were somewhere in her favorite playground, not too far away from the Licancabur volcano. Credit: High Lakes Project/The SETI Institute Carl Sagan Center/Nathalie A. Cabrol

   #science #earth #scicomm #photography