#3iatlas — Public Fediverse posts

2026-09-12 00:00:00 UTC (Delta: 2026-09-11)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.34 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 226 days

🌎 Relative to Earth
- Distance (km): 1,739,549,859.66 km (+2,754,938.79 km)
- Distance (AU): 11.63 (+0.02)
- Light travel time: 1 h 36 min 42.51 s (+9.19 s)

#3IAtlas #InterstellarObject

2026-09-11 00:00:00 UTC (Delta: 2026-09-10)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.34 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 227 days

🌎 Relative to Earth
- Distance (km): 1,736,794,920.87 km (+2,776,965.90 km)
- Distance (AU): 11.61 (+0.02)
- Light travel time: 1 h 36 min 33.32 s (+9.26 s)

#3IAtlas #InterstellarObject

2026-09-10 00:00:00 UTC (Delta: 2026-09-09)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.35 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 228 days

🌎 Relative to Earth
- Distance (km): 1,734,017,954.97 km (+2,799,666.50 km)
- Distance (AU): 11.59 (+0.02)
- Light travel time: 1 h 36 min 24.06 s (+9.34 s)

#3IAtlas #InterstellarObject

2026-09-10 00:00:00 UTC (Delta: 2026-09-09)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.35 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 228 days

🌎 Relative to Earth
- Distance (km): 1,734,017,954.97 km (+2,799,666.50 km)
- Distance (AU): 11.59 (+0.02)
- Light travel time: 1 h 36 min 24.06 s (+9.34 s)

#3IAtlas #InterstellarObject

2026-09-10 00:00:00 UTC (Delta: 2026-09-09)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.35 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 228 days

🌎 Relative to Earth
- Distance (km): 1,734,017,954.97 km (+2,799,666.50 km)
- Distance (AU): 11.59 (+0.02)
- Light travel time: 1 h 36 min 24.06 s (+9.34 s)

#3IAtlas #InterstellarObject

2026-09-10 00:00:00 UTC (Delta: 2026-09-09)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.35 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 228 days

🌎 Relative to Earth
- Distance (km): 1,734,017,954.97 km (+2,799,666.50 km)
- Distance (AU): 11.59 (+0.02)
- Light travel time: 1 h 36 min 24.06 s (+9.34 s)

#3IAtlas #InterstellarObject

2026-09-10 00:00:00 UTC (Delta: 2026-09-09)

INTERSTELLAR VISITOR: 3I/ATLAS
- Barycentric speed: 59.35 km/s (-0.00 km/s)
- Crossing Uranus's orbit in: 228 days

🌎 Relative to Earth
- Distance (km): 1,734,017,954.97 km (+2,799,666.50 km)
- Distance (AU): 11.59 (+0.02)
- Light travel time: 1 h 36 min 24.06 s (+9.34 s)

#3IAtlas #InterstellarObject

Weekly Update from the Open Journal of Astrophysics 18/07/2026

It’s time once more for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 151 and the total so far published by OJAp up to 599.

I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.

The first paper to report this week, published on Tuesday 14th July, is “On combining estimated and analytic covariance matrices” by Alan Heavens (Imperial College London, UK), Lorne Whiteway (University College, London, UK) and Elena Sellentin (Leiden University, The Netherlands). This article, published in the folder Cosmology and Nongalactic Astrophysics, presents an accurate approximation for the combined likelihood function in cosmological data analysis, improving upon previous methods by better representing the heavy tails of the true distribution.

The overlay for this paper is here

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116916991519124229

The second paper for this week, also published on Tuesday 14th July in the folder Cosmology and Nongalactic Astrophysics is: “Line-of-sight shear in SLACS strong lenses II: validation tests with an extended sample” by Natalie B. Hogg (U. Cambridge, UK), Daniel P. Johnson (Université de Montpellier, France), Anowar J. Shajib (U. Chicago, USA) and Julien Larena (Montpellier). The study described in this paper models 27 additional gravitational lenses, finding a significant fraction with unexpectedly large line-of-sight shears. Factors like redshift, filter, and signal-to-noise ratio don’t significantly affect shear magnitudes.

The overlay looks like this:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116917026598474399

The third paper of the week, published on Wednesday 15th July, again in the folder Cosmology and Nongalactic Astrophysics “Investigating the Dark Energy Constraint from Strongly Lensed AGN at LSST-Scale” by Sydney Erickson (Stanford University, USA) and 13 others on behalf of The LSST Dark Energy Science Collaboration. The study uses a new technique to analyze a large sample of lensed Active Galactic Nuclei, providing an independent probe of dark energy and improving constraints on the Universe’s expansion.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116922734297811558

The fourth paper of the week, also published on Wednesday 15th July but in the folder Earth and Planetary Astrophysics is “University of Hawaii 88-inch Telescope Observations of the Interstellar Comet 3I/ATLAS: Spectrophotometric Blue-Sensitive Spectral Time Series Spanning Two Months from Discovery” by W. B. Hoogendam (University of Hawaii, USA) and 24 others from around the world. The study presents observations of the third interstellar object, 3I/ATLAS, using the SuperNova Integral Field Spectrograph, revealing its properties and comparing it to bodies in our solar system.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116925616134490970

The fifth paper of the week, published on Friday 17th July in the folder Astrophysics of Galaxies, is “The birth of the intracluster medium: the evolution of multiphase gas and Lyman-α haloes in a z~3 simulated protocluster” by Jake S. Bennett (Harvard Smithsonian CfA, USA), Aaron Smith (U. Nottingham, UK), Fabrizio Arrigoni-Battaia (MPA Garching, Germany), Debora Sijacki (U. Cambridge, UK) , Cassandra Lochhaas (CfA) and Lars Hernquist (CfA). This study uses a cosmological simulation to explore the transition from complex galactic haloes to mature galaxy clusters, focusing on gas distribution, ionisation, and emission changes during this evolution.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116934117289387295

The sixth and final paper of this week is “Density reconstruction from biased tracers: Testing the equivalence principle through consistency relations” by Lawrence Dam and Omar Darwish (Université de Genève, Switzerland). This was published on Friday 17th July in the folder Cosmology and Nongalactic Astrophysics. It proposes using quadratic estimators to test the weak equivalence principle on cosmological scales, offering a practical alternative to the conventional bispectrum approach.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116934191977670070

As you can see we have now published over 150 papers this year and are just one shy of 600 in total. I expect we’ll pass that milestone next week. I’ll do another update next Saturday.

A high-tech space infographic. In the bottom-left, a detailed digital illustration of the James Webb Space Telescope faces toward the right.

#jameswebb #jwst #naša #spacenews #astronomy #interstellar #comet #3iatlas #methane #sciencecommunication #astrophotography #deepspace

Just how insanely precise was the #3iAtlas correction engine burn?

The margin is absurdly tight.
Jupiter's Hill radius on that date is 53.502 million km. The margin is 0.06 million km, that's one part in 1,000 relative to the Hill radius, and one part in 26,000 relative to Jupiter's full orbital diameter.
That's 57,000 km of margin on a 53.5 million km target, after travelling from interstellar space.

The non-gravitational acceleration measured at perihelion is what brought the trajectory to that value. Without it, 3I would have missed the Hill sphere entirely.

So the perihelion burn didn't just slow the object down.
💥It course-corrected with enough precision to thread a 0.1% margin on Jupiter's gravitational capture boundary💥

After a journey of billions of years across interstellar space.

That's not a snowball melting unevenly.
#space #astronomy " #comet " #aliens #techsignature

Data shows that #3iAtlas is definitely not a comet, it does not behave like a comet ever has, and the papers reporting the data have given up on trying to match the data into existing comet models.

Every #comet ever observed has its fast outgassing on the sunlit side, pointing away from the Sun. That's thermally mandatory, the hot side produces faster gas, and the gas moves away from the heat source. Decades of data across dozens of comets all show the same pattern. The fast exhaust is always anti-sunward.
3I has it reversed. The fast exhaust is sunward. That directly contradicts thermal sublimation physics.

💥There's no natural heating model that produces faster gas toward the thing heating you💥

The exhaust velocity is also wrong. At 3I's solar distance, every comet on record produces gas at 0.7–0.8 km/s. 3I is at 0.37. Half speed. The CO₂ mass explanation accounts for the number, but no comet has ever shown a CO₂-dominated exhaust profile sustained through perihelion like this. Comets that are CO₂-rich still show water taking over as they get close to the Sun because water ice sublimates aggressively at those temperatures.

The sulfur depletion is also unprecedented. Every comet carries hydrogen sulfide.
💥Every single one💥

3I has none detectable, below the floor of any known cometary measurement.
And the water production at 900% of surface capacity with a locked output temperature that doesn't respond to solar heating: no comet does that either.

Nothing about this object's perihelion behaviour is consistent with any comet ever observed.

World's space agencies have all the data consistent with an #alien #techsignature #interstellar vessel.
#space #solarsystem #visitors #astronomy

Its also worth noting, that when a non-gravitational acceleration was observed in the #3iatlas data, lateral rather than towards the sun as with all #comet
JPL 'fixed' the data by changing it by the maginiture of 6. Thats SIX TIMES. To make this course correction look normal.

They have only done this a couple of days after the anomalous course correction was brought to their attention.

This course correction was actually what pushed the "comet" into Jupiter gravity capture zone. A 1/26000 chance event.

NB. I am not claiming that 3iAtlas "comet" entered Jupiters orbit, its moving too fast for that and there is no data for such a claim.
Its just one more 'anomaly' in a list of 50 anomalies that make this object behave exactly like a comet does not.

#Astronomy #techsignature #space

#3iAtlas weirdness continues.

The Jupiter Hill Zone (Gravity effect of Jupiter) was entered on March 16. Twelve days ago.

Since then, absolute silence from everybody.
👉 Any post-flyby astrometric report from MPC
👉 Any JPL Horizons orbit solution update discussion
👉 Any Juno observation — not even a "we tried and failed"
👉 Any Hubble or JWST observation during or after the flyby
👉 Any amateur CCD astrometry showing post-flyby residuals
👉 Any ESA statement
👉 Any JAXA statement
👉 Any COBS lightcurve data points from post-March-16
👉 Any preprint on arxiv discussing the actual flyby geometry vs predictions
There are three explanations for this;

1) No one cares anymore

2) Data exists, but is in the pipeline

3) Something weid happened on Jupiter insertion and no one wants to be the first one to say.

#Astronomy #techsignature #space

Multiple #fireballs falling on earth right now are very likely the "debris field" of #3iAtlas

Earth is currently passing through the area of the plane of ecliptic that 3iAtlas passed through.

#NASA of course is supporting all the other 50 #anomalies about that "#comet" by outright lying that "we usually get this many meteors around this time" - the fireballs are not part of any #meteorshower this is #Anomalous

#space #orbit #astronomy #meteor #techsignature

Those following the actual #data from #3iatlas understand that there are grounds to consider this object something more than a #comet

The anomalies just keep piling up.

This courageous analysis of the documented, gathered data presents a solid case that 3iAtlas may indeed be an interstellar probe.

TLDR; It's only a "Comet" is you fudge the data on a criminal scale

https://thesentinelnetwork.substack.com/p/the-wide-angle-princetons-64-telescopes
#space #astronomy #aliens #techsignature #nonhumanintelligence #astronomy

When 4 "Coincidences" Stop Being Coincidences

A 5.6km object is heading toward Jupiter with four characteristics that break the rules:

🎯 Targeting precision - Arriving at the exact gravitational boundary used for orbital insertion (1 in 25,000 odds)

⚖️ Impossible density - Would need to be lighter than cotton candy while staying intact (physics violation) (or hollow)

🔬 Industrial chemistry - Spectral signature matches refined aerospace alloys, not space ice

🎮 Active control - Jets that defy rotational physics without stabilization systems

Combined probability: <1 in 100,000
But that is just a number, let's visualise 1:100000;

3I/ATLAS arriving at Jupiter's Hill sphere boundary after a course correction is like watching five cars in a row all have license plates ending in 777 - while they're all driving to the same address - and they all arrived exactly on time.

Or

Three spins of a Roulette Wheel landing on the same number.

March 2026 Jupiter encounter = the moment of truth.
My prediction: Something totally anomalous will happen which will either be under-reported or, totally ignored or misrepresented. Can't wait!

And in a new paper NASA documents how it shut down ("contingency mode") it's TESS probe just when it could have gathered precise data about #3iAtlas (https://arxiv.org/abs/2601.21569)

#space #coincidence #spaceship #nhi #nhe #uap #phenomenon #astronomy

NASA cut the data feed from its observer at the most critical time in 3iAtlas passage;

https://thesentinelnetwork.substack.com/p/the-three-days-of-darkness-why-did

#3iAtlas "#comet" #aliens #techsignature #astronomy #space

Nasa abre o jogo sobre cometa interestelar misterioso e revela novas imagens do visitante de fora do Sistema Solar

https://web.brid.gy/r/https://www.abcmais.com/mundo/nasa-abre-o-jogo-sobre-cometa-interestelar-misterioso-e-revela-novas-imagens-sobre-visitante-de-fora-do-sistema-solar/

Another CME is heading towards #3iatlas

If it is #techsignature because of its 9 anomalies...

...the question is, are the sol owners using the sun as a weapon?
Or are the visitors "charging up" with solar plasma?

As a species that's just celebrated the 8000th anniversary of a sharpened stick, it might be difficult to comprehend the capabilities of a civilisation hundreds of thousands of years old.

Secret earth defense network engaging #3iAtlas

Whether its cosplay, fact or semi-fact.
You may find this article... interesting

https://medium.com/@earthexistclothing/3i-atlas-cassandra-unclassified-799785fc42ca

#comet #astronomy #phenomenon #techsignature #aliens #pewpew #space

3I/ATLAS might have just proven Einstein's 1915 theory right before unusually deviating near the Sun, which resurfaces the question: Is it really a comet?
https://atlas.whatip.xyz/post.php?slug=3iatlas-might-have-just-proven-einsteins-1915-theory-right-before-unusually-deviating-near-the-sun-which-resurfaces-the-question-is-it-really-a-comet
"Unraveling Celestial Mysteries: Is 3I/ATLAS Really a Comet?" #CosmicEnigma #EinsteinTheoryConfirmed
#space #astronomy #3iatlas #generalrelativity

3I/ATLAS might have just proven Einstein's 1915 theory right before unusually deviating near the Sun, which resurfaces the question: Is it really a comet?
https://atlas.whatip.xyz/post.php?slug=3iatlas-might-have-just-proven-einsteins-1915-theory-right-before-unusually-deviating-near-the-sun-which-resurfaces-the-question-is-it-really-a-comet
"Unraveling Celestial Mysteries: Is 3I/ATLAS Really a Comet?" #CosmicEnigma #EinsteinTheoryConfirmed
#space #astronomy #3iatlas #generalrelativity

3I/ATLAS might have just proven Einstein's 1915 theory right before unusually deviating near the Sun, which resurfaces the question: Is it really a comet?
https://atlas.whatip.xyz/post.php?slug=3iatlas-might-have-just-proven-einsteins-1915-theory-right-before-unusually-deviating-near-the-sun-which-resurfaces-the-question-is-it-really-a-comet
"Unraveling Celestial Mysteries: Is 3I/ATLAS Really a Comet?" #CosmicEnigma #EinsteinTheoryConfirmed
#space #astronomy #3iatlas #generalrelativity

3I/ATLAS might have just proven Einstein's 1915 theory right before unusually deviating near the Sun, which resurfaces the question: Is it really a comet?
https://atlas.whatip.xyz/post.php?slug=3iatlas-might-have-just-proven-einsteins-1915-theory-right-before-unusually-deviating-near-the-sun-which-resurfaces-the-question-is-it-really-a-comet
"Unraveling Celestial Mysteries: Is 3I/ATLAS Really a Comet?" #CosmicEnigma #EinsteinTheoryConfirmed
#space #astronomy #3iatlas #generalrelativity