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#craters

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Moon over Mastodon 🌙 📷

 
#FollowFriday #Astrophotographers

Truth be told, at @KronoMoonPhotos, what makes us happy is sharing, retooting & boosting everybody's personal #MoonShots, from their #bedroom #windows or their #backyard #gardens. Professional credentials are not required here, although an occasional #hashtag is nice: #MoonOverMastodon.

But there's a special love for our dedicated #deepspace #photogs, for their sharply etched #lunar #mountains & #craters, silent witnesses in the ethereal glow of #MotherEarth. #Astrophotography is a challenging, costly, and sometimes lonely pursuit, its #techies & #artisans gifting us with glimpses of the #wonders of the #cosmos. Here are a few fine practitioners, with our gratitude.

@webcubus 🐘 @sharongascoigne
@96sk 🐘 @w_susukigawa
@tars_server 🐘 @WhiteJack
@raphastronome 🐘 @hausderastronomie
@kreegan99 🐘 @UniversoMagico
@mchesner 🐘 @world_beauty
@apod_random 🐘 @space
@youcantoo 🐘 @macmade

🔗 Astrodon.social/directory 🌙 🔭 🌠

Mastodon hosted on astrodon.socialAstrodon - The Astro CommunityA Mastodon community server for anyone interested in astronomy, astrophysics, astrophotography, and adjacent sciences.
#KronoMoonPhotos
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💧🌏 Greg Cocks

Earth May Have Had A Ring System 466 Million Years Ago
--
phys.org/news/2024-09-earth-mi <-- shared technical article
--
doi.org/10.1016/j.epsl.2024.11 <-- shared paper
--
“HIGHLIGHTS:
• Earth may have had a ring during the middle Ordovician, from ca. 466 Ma.
• Breakup of an asteroid passing within Earth's Roche limit likely formed the ring.
• Among several features preserved is a near-equatorial band of impact craters.
• Shading of Earth by the ring may have triggered a global icehouse period…”
--
#GIS #spatial #mapping #model #modeling #geology #structuralgeology #planetarygeology #rings #climatechange #paleoclimate #Ordovician #asteroid #rochelimit #craters #impactcrater #crater #icehouse #meteorite #platetectonics #HirnantianIcehouse

graphic - close up of rocks / asteroids making up the rings around Saturn
maps - Areas of continental crust distal to the equator during the Ordovician. Areas older than Ordovician are indicated in salmon colour, Ordovician rocks are dark blue, and younger are in grey. Light blue indicates lakes in Africa. The labelled point (L) in Africa is the Luizi impact structure, which has a very poorly defined age that could plausibly be Ordovician, constrained to be between 0 and 573 Ma
map - Positions of the Ordovician impact craters on the reconstructed plate positions of the MER21 model, showing the movement of continents and trace of impact sites from 467 to 450 Ma. AMZ, Amazonia; ANT, Antarctica; AS, Arabian Shield; AUS, Australia; AZ, Azania; BAL, Baltica; IND, India; LAU, Laurentia; NC, North China; SA, Southern Africa; SAH, Saharah; SC, South China; SEA, South-eastern South America; SIB, Siberia; SSA, Southern South America; T, Tarim; WAF, West Africa.
maps - Areas of continental crust proximal to the equator during the Ordovician. Areas older than Ordovician are indicated in salmon colour, Ordovician rocks are dark blue, and younger are grey. Light blue indicates lakes in Europe and Russia. The labelled pink points are the recognised Ordovician impact spike craters: in Australia, Lawn Hill (LH); in North America, Tunnunik (T), Pilot (P), Lac Couture (LC), East Clearwater Lake (ECw), La Moinerie (LM), Charlevoix (Ch), Brent (B), Slate Islands (SI), Rock Elm (RE), Decorah (D), Calvin (Ca), Glasford (G), Ames (A); in Europe, Lochne (Lo), Malingen (M), Granby (G), Tvaren (T), Hummeln (H), Ilyinets (Iy) and Kardla (Ka) (the latter two are situated on the western edge of the map for Russia). The labelled black points are impact structures with very poorly defined ages that could plausibly be Ordovician in age (Parisi et al., 2024; Schmieder and Kring, 2020), but have not been included in [their] considerations: Goyder (Gy), Glikson (Gl), Matt Wilson (M), Woodleigh (W), Liverpool (L), Glover Bluff (GB), Crooked Creek (CC), Santa Fe (SF), Holleford (H), Île Rouleau (IR), Presqu’île (P), Lumparn (L), Saarijärvi (Sj), Summanen (Sm), Kamenetsk (K), Ramgarh (R).
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Kevin Karhan :verified:

Something's happening around 66.57° N, 148.71° E near #UsunKiuel' / Усун-Кюёль, Sacha, #Russia...

Seems like a huge-ass #methane #blowout if not fires of the #Permafrost, as the area is dotted with #Sinkholes and #craters as well as absurdly high amounts of emissions.

And it's not like #Norilsk or other #industrial hotspots where a huge amounts of #particle #emissions are easily explained...

Anyone have contacts at #RosHydroMet or rather #NOAA & #esa to confirm this?

The area has suspiciously blurry satellite images on #GoogleMaps...

earth.nullschool.net/#current/

A thousands of times than normal Organic Matter Aerosol Optical Thickness @ 550 nm wavelenght on said coordinates.
Also huge particle amounts of particle emissions @ 10 microns
As well as 2,5 microns
And also 1 microns
#Weather#Climate#AirQuality
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