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Astronomy Picture of the Day - Light Pillar over Erupting Etna
NASA ^ | 24 Feb, 2025 | Image Credit & Copyright: Davide CaliΓ²

Posted on 02/24/2025 11:51:53 AM PST by MtnClimber

Explanation: Can a lava flow extend into the sky? No, but light from the lava flow can. One effect is something quite unusual -- a volcanic light pillar. More typically, light pillars are caused by sunlight and so appear as a bright column that extends upward above a rising or setting Sun. Alternatively, other light pillars -- some quite colorful -- have been recorded above street and house lights. This light pillar, though, was illuminated by the red light emitted by the glowing magma of an erupting volcano. The volcano is Italy's Mount Etna, and the featured image was captured with a single shot during an early morning in mid-February. Freezing temperatures above the volcano's lava flow created ice-crystals either in the air above the volcano or in condensed water vapor expelled by Mount Etna. These ice crystals -- mostly flat toward the ground but fluttering -- then reflected away light from the volcano's caldera.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; italy; mountetna; nasa; science; sicily; volcano; volcanoes
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 02/24/2025 11:51:53 AM PST by MtnClimber
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To: MtnClimber

2 posted on 02/24/2025 11:52:16 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

3 posted on 02/24/2025 11:53:01 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

Wow! Just awesome. Amazing pics of a very alive planet we live on.


4 posted on 02/24/2025 12:01:17 PM PST by Omnivore-Dan (Shut)
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To: Omnivore-Dan

The site seems to be down right now. I’ve never seen that before.


5 posted on 02/24/2025 12:19:51 PM PST by The Antiyuppie (When small men cast long shadows, it is near the end of the day.)
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To: mewzilla

ping


6 posted on 02/24/2025 12:26:39 PM PST by BenLurkin (The above is not a statement of fact. It is opinion or satire. Or both.)
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To: MtnClimber

Bkmk


7 posted on 02/24/2025 12:50:15 PM PST by sauropod (Make sure Satan has to climb over a lot of Scripture to get to you. John MacArthur Ne supra crepidam)
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To: MtnClimber

Wonderfully crazy!


8 posted on 02/24/2025 12:58:09 PM PST by NavyShoe
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To: MtnClimber

Awesome. I’ve seen light pillars in January, just before dawn, but this one is really spectacular.


9 posted on 02/24/2025 1:22:32 PM PST by telescope115 (I NEED MY SPACE!!! πŸ”­)
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To: MtnClimber

What a beautiful spectacle.


10 posted on 02/24/2025 1:54:30 PM PST by BlackVeil ('The past is never dead. It's not even past.' William Faulkner)
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To: MtnClimber

11 posted on 02/24/2025 6:30:26 PM PST by Ken H (Trump 2024)
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To: MtnClimber

Etna bkmk


12 posted on 02/24/2025 9:18:52 PM PST by Buttons12
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