🪐 A quiet frontier surrounds the planets, where icy bodies drift in deep distance and long‑period comets rise like messages from an inferred halo shaped by the Sun and touched by the galaxy. ✍️ Follow the arc: tpc8.short.gy/zb8yYmze
Distant places shape us.
#OortCloud #Astronomy #SolarSystem #TPC8
La NASA scrute enfin la sphère d’Oort, ce nuage de milliards de comètes aux confins du Soleil. Une frontière clé pour comprendre nos origines.
www.tameteo.com/actualites/a... #Science #Astrophysics #OortCloud #DeepSpace
Sedna, frozen and lonely world drowned in darkness. It's red, ancient surface receives only a tiny amount of Sun's light.
#Sciart #space #illustration #astronomy #Sedna #OortCloud #SolarSystem
Protection by a million Trojans for billions of years
#RareEarthHypothesis #Fermiparadox #comets #Oortcloud
#Space
#NASA
#OortCloud
#Voyager1
#Voyager2
#Heliosphere
(Full article)
www.iflscience.com/voyager-will...
Sounds like a mission to the nearest star is likely to come first and even that will involve developing much more powerful engines and is likely a long way off, #Voyager1 reaches the #OortCloud in 300 years, that is the edge of orbit around the Sun!
Aux confins du Système solaire, la NASA détecte une spirale étrange via supercalculateur. Une structure inédite dans le nuage d’Oort.
www.lejournaleconomique.com/2025/07/26/c...
#Space #Astrophysics #OortCloud #DeepSpaceAnomaly #EmergingSpace
3/11 The megacomet's journey is epic in scale:
🔸 Currently over 20x Earth-Sun distance away
🔸 Closest approach to Sun: 2031 (near Saturn's orbit)
🔸 Orbital distance: 55,000x Earth-Sun distance
🔸 That's 87% of a light-year into the Oort Cloud
Epic journey.
#OortCloud #CometOrbit
4/11 We know passing stars can stir up the Oort Cloud—that vast halo of trillions of icy bodies stretching over a light-year from the Sun.
This could send hundreds or thousands of comets careening toward the inner solar system, potentially triggering mass extinctions.
#OortCloud #Comets
Monster Oort Cloud Comet Observed in the Outer Solar System #Science #Space #Astronomy hashtag 1: #OortCloud 2: #CometObservation 3: #OuterSolarSystem
Researchers used ALMA to study comet C/2014 UN271 (Bernardinelli–Bernstein), confirming its massive 140 km icy nucleus and detecting dynamic carbon monoxide jets as it travels inward from the Oort Cloud. #OortCloud #CometScience #Astronomy
🧪🔭☄️
Paper
iopscience.iop.org/article/10.3...
A digitized 35mm astrophoto of Comet Hale-Bopp (C/1995 O1) taken a few days after its perihelion passage on April 1, 1997. The image shows the comet's distinct dust and ion tails against a backdrop of stars. The photo was hand-guided for 10 minutes using a telephoto lens piggybacked on a small telescope.
Astronomy Picture from 08/04/2022
Hale-Bopp: The Great Comet of 1997
Source: https://apod.nasa.gov/apod/ap220408.html
#HaleBopp #CometHaleBopp #GreatComet #Astrophotography #1997Comet #Space #Astronomy #RetroSpace #OortCloud #ClassicComet #VintageAstronomy #NightSky
A stunning telescopic image of Comet C/2025 F2 SWAN, showcasing its greenish coma and faint ion tail against a backdrop of stars in the constellation Andromeda. Captured in June Lake, California, on April 14, this image highlights the comet's journey from the distant Oort cloud towards its perihelion on May 1. The comet's distinct green hue is due to diatomic carbon molecules fluorescing in sunlight.
Astronomy Picture from 18/04/2025
Comet C/2025 F2 SWAN
Source: https://apod.nasa.gov/apod/ap250418.html
#CometSWAN #Space #Astronomy #Comet #SOHO #OortCloud #DeepSky #Astrophotography #Cosmology #NightSky #Science #GreenComet #SolarWindAnisotropies #CitizenScience
The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned an accidental discovery about the cloud's shape. AMNH
#Space is amazing!
Accidental find in planetarium show could shift scientists’ understanding of our solar system
#OortCloud #HaydenPlanetarium
bit.ly/3HE6CCE
Astronomers noticed a spiral-shaped structure in the inner Oort Cloud while preparing a planetarium show. Simulations confirm a twisted spiral pattern.
🔭🧪
#OortCloud
#SolarSystem
#Astrophysics
iopscience.iop.org/article/10.3...
Fuzzy spiral shape in center with 3 straight lines coming out of it. Large white arrow points to it, and bold white text in blue rectangle says "Fluke discovery!"
In 2024, #scientists at the American Museum of Natural History in New York noticed a spiral structure in the #OortCloud, something never seen before. Jackie Faherty will be discussing the discovery with EarthSky’s Will Triggs today at 12:15 CDT (17:15 UTC). Join us! 🔭
buff.ly/nboyy0e
📸 EarthSky.org
A Hacker News discussion explored the discovery of a spiral structure in the inner Oort cloud, visualized via a Hayden Planetarium simulation. Key topics included its significance, comparison to galactic spirals, and observation challenges. #OortCloud 1/6
"Why is there a spiral there?"
Accidental Discovery at a Planetarium
#astronomy #OortCloud #HaydenPlanetarium
apnews.com/article/museum-planetari...
Tohle je fasicnující - naprostou náhodou bylo díky vizualizaci reálných dat zjištěno, že Oortův oblak má ve skutečnosti tvar spirály (něco jako minigalaxie kolem Sluneční soustavy!)
apnews.com/article/museum-planetari...
#astronomy #solarsystem […]
...One evening while watching the Oort Cloud scene, scientists noticed something strange projected onto the planetarium’s dome.
“Why is there a spiral there?” ...
www.pbs.org/newshour/sci...
#Astronomy #SolarSystem #OortCloud
Stunning telescopic image of Comet C/2025 F2 (SWAN) captured from June Lake, California on April 14th. The comet's greenish coma and faint ion tail are clearly visible against a backdrop of stars in the constellation Andromeda. This visitor from the Oort cloud is currently visible in northern hemisphere morning skies.
Astronomy Picture from 18/04/2025
Comet C/2025 F2 SWAN
Source: https://apod.nasa.gov/apod/ap250418.html
#CometSWAN #SpaceRocks #OortCloud #Astronomy #Comet #SOHO #CitizenScience #DeepSpace #Cosmology #NightSky #GreenComet #Celestial #Astrophotography #Binoculars #Telescope
Two versions of a cartoonish asteroid, one with a kawaii face and happy mouth, the other with weary eyes and eyebrows.
Two versions of a cartoonish asteroid, one with large googly eyes, the other with smaller eyes but huge pupils.
Had a busy evening working out which kind of eyes give an asteroid just the right level of expressiveness. I want to hit 'emotive' but fall short of 'anthropomorphised', which probably means no mouths or eyebrows.
#WIPWednesday #Oortcloud
If my maths is right, a comet who wanted at least 5% of the Oort cloud’s 20 trillion space rocks to sign a petition against the inevitable incursion of the star Gliese 710 would need to personally convince 42 comets during their 1.2 million year word-of-mouth campaign.
#devlog #oortcloud
What’s beyond the Oort Cloud? ☁️✨
Beyond the Oort Cloud lies lnterstellar Space, the vast, empty region between star systems. It’s a Space where the Sun’s influence, including its magnetic field and solar wind, no longer holds sway.
#nasa #spacex #space #kuiperbelt #oortcloud #universe #cosmos
A stunning telescopic image shows Comet PanSTARRS (C/2017 T2) near galaxies M81 and M82. The comet, a visitor from the Oort Cloud, displays a beautiful coma and dust tail. Captured in dark California skies, the image also reveals a short anti-tail as the comet leaves the inner Solar System. The galaxies are located approximately 12 million light-years away, while the comet was about 14 light-minutes from Earth at the time of this observation.
Astronomy Picture from 06/06/2020
Comet PanSTARRs and the Galaxies
Source: https://apod.nasa.gov/apod/ap200606.html
#CometPanSTARRS #C2017T2 #M81 #M82 #Galaxies #OortCloud #DeepSky #Astrophotography #Space #Cosmology #Astronomy #Comet #NightSky
A close-up image of Gliese 710, a red dwarf star projected to become our closest stellar neighbor in a million years. Currently located 63 light-years away in Ophiuchus, this faint star will brighten considerably as it approaches our solar system, potentially impacting the Oort Cloud. The image is from the Palomar Digitized Sky Survey.
Astronomy Picture from 11/12/1999
A Close Encounter Of The Stellar Kind
Source: https://apod.nasa.gov/apod/ap991211.html
#Gliese710 #StellarNeighbor #FutureEncounter #RedDwarf #OortCloud #Cosmology #Astrophysics #SpaceExploration #MilkyWay #Astronomy #StarryNight #DeepSpace
Artist's conception of Sedna, the most distant known object in our solar system. This dark red, Pluto-sized body has a highly elliptical orbit, potentially originating from the Oort Cloud. Its unusual color and orbit are sparking new research into the outer reaches of our solar system.
Astronomy Picture from 16/03/2004
Sedna of the Outer Solar System
Source: https://apod.nasa.gov/apod/ap040316.html
#Sedna #DistantObject #SolarSystem #OortCloud #NASA #Astronomy #SpaceExploration #NewDiscovery #PlanetaryScience #RedPlanet
Six-panel time-lapse showcasing Comet C/2023 A3 (Tsuchinshan-ATLAS) fading as it moves away from Earth. Images captured Oct 12-17, 2024 from various California locations, revealing the comet's diminishing brightness and antitail.
Astronomy Picture from 19/10/2024
Comet Tsuchinshan-ATLAS Flys Away
Source: https://apod.nasa.gov/apod/ap241019.html
#CometC2023A3 #TsuchinshanATLAS #Comet #Astrophotography #California #OortCloud #DeepSpace #Astronomy #Space #NightSky #Antitail
