Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Ptah

(33,891 posts)
Sun Jul 27, 2025, 08:31 PM Jul 27

Astronomy 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
4 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Astronomy Picture of the Day - 2025 July 27 - Lightning over the Volcano of Water (Original Post) Ptah Jul 27 OP
Fabulous photo; snot Jul 27 #1
WOW! Bayard Jul 27 #2
positive lightning there . rumble bumble. AllaN01Bear Jul 27 #3
Great pic! I remember our dad was driving in the countryside.... electric_blue68 Jul 28 #4

electric_blue68

(23,387 posts)
4. Great pic! I remember our dad was driving in the countryside....
Mon Jul 28, 2025, 02:39 AM
Jul 28

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!

Latest Discussions»The DU Lounge»Astronomy Picture of the ...