🚀 3I/ATLAS: NOT A SPACESHIP. JUST A COMET.

“Non-gravitational acceleration” doesn’t mean aliens—it means outgassing. A new AAS paper shows interstellar comet 3I/ATLAS behaves like a normal comet, with icy jets giving it a gentle push. Mass, size, acceleration? All ordinary physics.
👉 https://spaceweather.com/

📸 Comet 3I/ATLAS, Dec. 2, 2025 — Gerald Rhemann & Michael Jäger
#3IATLAS #Astronomy #Comets #SpaceScience #NotAliens

🚀 3I/ATLAS: NOT A SPACESHIP. JUST A COMET.

“Non-gravitational acceleration” doesn’t mean aliens—it means outgassing. A new AAS paper shows interstellar comet 3I/ATLAS behaves like a normal comet, with icy jets giving it a gentle push. Mass, size, acceleration? All ordinary physics.
👉 https://spaceweather.com/

📸 Comet 3I/ATLAS, Dec. 2, 2025 — Gerald Rhemann & Michael Jäger
#3IATLAS #Astronomy #Comets #SpaceScience #NotAliens

Planets, comets and asteroids, winner: Taking a Final Bow by Dan Bartlett
Comet 12P/Pons-Brooks reacts to intensified solar winds, creating a spectacle of tail dynamics and colourful hues expelled by the bright cloud of gas around its centre. The photograph was taken at June Lake, California, US

#astrophotography
#comets

Comets from The Augsburg Book of Miracles, 16th century.
💫
More in our post "Flowers of the Sky", of depictions spanning almost a whole millennium of comets, meteors, meteorites and shooting stars: https://publicdomainreview.org/collection/flowers-of-the-sky #comets #meteors #shootingstars #meteorshower

Comets from The Augsburg Book of Miracles, 16th century.
💫
More in our post "Flowers of the Sky", of depictions spanning almost a whole millennium of comets, meteors, meteorites and shooting stars: https://publicdomainreview.org/collection/flowers-of-the-sky #comets #meteors #shootingstars #meteorshower

Me enteré hoy de esto --> https://ladiaria.com.uy/ciencia/articulo/2025/7/no-solo-las-parejas-se-separan-como-una-ruptura-puede-explicar-el-origen-de-un-cometa/#astronomía #cometas #astronomy #comets #uruguay

Me enteré hoy de esto --> https://ladiaria.com.uy/ciencia/articulo/2025/7/no-solo-las-parejas-se-separan-como-una-ruptura-puede-explicar-el-origen-de-un-cometa/#astronomía #cometas #astronomy #comets #uruguay

ZWO Astronomy Photographer of the Year 2025 has just released its shortlist of remarkable images for this year’s competition. See them now:

https://www.thisiscolossal.com/2025/07/zwo-astronomy-photographer-of-the-year-2025/

#nature #photography #science #space #landscape #astronomy #astrophotography #comets #moon #plants #stars #sun

ZWO Astronomy Photographer of the Year 2025 has just released its shortlist of remarkable images for this year’s competition. See them now:

https://www.thisiscolossal.com/2025/07/zwo-astronomy-photographer-of-the-year-2025/

#nature #photography #science #space #landscape #astronomy #astrophotography #comets #moon #plants #stars #sun

Fascinating: ESA is now preparing the Comet Interceptor mission

The spacecraft will be launched in 2029 into a parking orbit, lying in wait for a suitable target – a pristine comet from the Oort Cloud, or, unlikely but highly appealing, an interstellar object.

➡️ https://www.esa.int/Science_Exploration/Space_Science/Comet_Interceptor

#ESA #CometInterceptor #comet #comets#OortCloud#3IATLAS #Astrodon #science #news

Fascinating: ESA is now preparing the Comet Interceptor mission

The spacecraft will be launched in 2029 into a parking orbit, lying in wait for a suitable target – a pristine comet from the Oort Cloud, or, unlikely but highly appealing, an interstellar object.

➡️ https://www.esa.int/Science_Exploration/Space_Science/Comet_Interceptor

#ESA #CometInterceptor #comet #comets#OortCloud#3IATLAS #Astrodon #science #news

Starlit Ocean by Xingyang Cai

Comet Tsuchinshan–Atlas (C/2023 A3) and Milky Way seen from McWay Falls in Big Sur.

#astrophotography
#MilkyWay
#comets