by Ann » Tue Aug 13, 2024 8:55 am
Thanks, Jac, for inviting us to this magic world above the clouds inhabited by electrical discharges, sprites, elves, ghosts and trolls! Let alone the blue jets and the gigantic jets!
The APOD is nice, but I think it show us rather too much background and a too small-looking gigantic jet! Although the gigantic jet itself does look fantastic, like a neon-colored mushroom growing out of the cloud cover of the Earth.
I get that the green layer of the atmosphere is airglow. But why is the atmosphere beneath the green airglow-layer bronze-colored? Is it due to air pollution?
Ann
[quote=AVAO post_id=340767 time=1723525331 user_id=144694]
[quote="APOD Robot" post_id=340766 time=1723521956 user_id=128559]
[url=https://apod.nasa.gov/apod/ap240813.html] [img]https://apod.nasa.gov/apod/calendar/S_240813.jpg[/img] [size=150]Giant Jet from the International Space Station[/size][/url]
[b] Explanation: [/b] What's that on the horizon? When circling the Earth on the [url=https://www.nasa.gov/international-space-station/]International Space Station[/url] early [url=https://en.wikipedia.org/wiki/SpaceX_Crew-8]last month[/url], astronaut [url=https://www.nasa.gov/people/matthew-dominick/]Matthew Dominick[/url] saw an unusual type of lightning just beyond the Earth's edge: a gigantic jet. The powerful jet appears on the left of the [url=https://www.flickr.com/photos/semeion/53899529103/in/pool-apods/]featured image[/url] in red and blue. [url=https://apod.nasa.gov/apod/ap160823.html]Giant jet lightning[/url] has only been known about for the past 23 years. The atmospheric jets are associated with thunderstorms and extend upwards towards [url=https://science.nasa.gov/earth/10-things-to-know-about-the-ionosphere/]Earth's ionosphere[/url]. The lower part of [url=https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS071&roll=E&frame=319414]the frame[/url] shows the [url=https://apod.nasa.gov/apod/ap121207.html]Earth at night[/url], with Earth's thin atmosphere tinted green from airglow. [url=https://apod.nasa.gov/apod/ap130331.html]City lights[/url] are visible, sometimes resolved, but usually creating diffuse white glows in intervening clouds. The top of [url=https://www.flickr.com/photos/frankie57pr/53877835585/]the frame[/url] reveals distant stars in the dark night sky. The nature of [url=https://en.wikipedia.org/wiki/Upper-atmospheric_lightning#Gigantic_jets]gigantic jets[/url] and their possible association with other types of [url=https://skybrary.aero/articles/transient-luminous-events-tles]Transient Luminous Events[/url] (TLEs) such as [url=https://en.wikipedia.org/wiki/Upper-atmospheric_lightning#Blue_jets]blue jets[/url] and [url=https://apod.nasa.gov/apod/ap231002.html]red sprites[/url] remains an [url=https://upload.wikimedia.org/wikipedia/commons/8/88/Example-dog-on-the-internet.png]active topic of research[/url].
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[/quote]
TLEs: Electrical discharges above the clouds. Of sprites, blue jets, elves and trolls
[img2]https://thekidshouldseethis.com/wp-content/uploads/2021/05/transient-luminous-events-ghost-frankie-lucena.jpg[/img2]
[size=65]source: https://thekidshouldseethis.com/post/transient-luminous-events-jellyfish-sprites-jets-ghosts-video
[/size]
[img2]https://services.meteored.com/img/article/tles-elektrische-entladungen-uber-den-wolken-von-sprites-blue-jets-elves-und-trolls-1712681616860_1024.jpg[/img2]
[size=65]source:www.eso.org/sci/publications/messenger/archive/no.163-mar16/messenger-no163-43-45.pdf[/size]
Red Sprites and Blue Jets Explained - New Discovery!
https://www.youtube.com/watch?v=tGPQ5kzJ9Tg
[/quote]
Thanks, Jac, for inviting us to this magic world above the clouds inhabited by electrical discharges, sprites, elves, ghosts and trolls! Let alone the blue jets and the gigantic jets!
The APOD is nice, but I think it show us rather too much background and a too small-looking gigantic jet! Although the gigantic jet itself does look fantastic, like a neon-colored mushroom growing out of the cloud cover of the Earth.
[img3="Giant Jet from the International Space Station.
Image Credit: NASA, Expedition 71 Crew, JSC, ESRS, Matthew Dominick; Processing: Simeon Schmauß"]https://apod.nasa.gov/apod/image/2408/JetIss_Schmauss_960.jpg[/img3]
I get that the green layer of the atmosphere is airglow. But why is the atmosphere beneath the green airglow-layer bronze-colored? Is it due to air pollution?
Ann