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Related: Culture Forums, Support ForumsAstronomy Picture of the Day - 2025 July 27 - Lightning over the Volcano of Water
Astronomy Picture of the Day 2025 July 27
Lightning over the Volcano of Water
Have you ever watched a lightning storm in awe? You're not alone. Details of what causes lightning are still being researched, but it is known that inside some clouds, internal updrafts cause collisions between ice and snow that slowly separate charges between cloud tops and bottoms. The rapid electrical discharges that are lightning soon result. Lightning usually takes a jagged course, rapidly heating a thin column of air to about three times the surface temperature of the Sun. The resulting shock wave starts supersonically and decays into the loud sound known as thunder. On average, around the world, about 6,000 lightning bolts occur between clouds and the Earth every minute. Pictured in July 2019 in a two-image composite, lightning stems from communication antennas near the top of Volcán de Agua (Volcano of Water) in Guatemala.
https://apod.nasa.gov/apod/ap250727.html
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Astronomy Picture of the Day - 2025 July 27 - Lightning over the Volcano of Water (Original Post)
Ptah
Jul 27
OP
snot
(11,279 posts)1. Fabulous photo;
thanks!

AllaN01Bear
(27,170 posts)3. positive lightning there . rumble bumble.
electric_blue68
(23,387 posts)4. Great pic! I remember our dad was driving in the countryside....
We were at the top of a hill about to go down, but then come back up to the next hilltop - which was level with our line of sight.
Just before we descended a wide "ribbon" of a lightening bolt - you know crepe paper(?); like "crepe paper of light" came jaggedly down hitting beyond the next hilltop!
Startling!
ETA. I think I've seen some thinderhead illustrations with the different positions of + and - charges within a storm cloud.
How interesting what causes the thunder!