No riddle this time, or perhaps a very big one. Did you know that the Great Pyramid is roughly proportional to the sides of Kepler's triangle? The what? Yes, you heard that right.
#maths #geometry #goldenratio #kepler #pseudoscience #hiddenarcheology
The time-scale in the #universe / #space always seems so long & vast, so it's sort of incredible to be able to see something like this in 25 years!
📷 : https://chandra.harvard.edu/photo/2026/kepler/
#astronomy #Astrophotography #Chandra #Kepler #Supernova #TimeLapse #space #science
#KnowledgeBit: #Kepler-452b is an #Exoplanet sometimes quoted to be an #Earth2.0 or Earth's Cousin based on its characteristics. It is the first potentially rocky super-Earth planet discovered orbiting within the habitable zone of a star very similar to the Sun.
Of the 1,030 confirmed planets from Kepler, a dozen are less than twice the size of Earth and reside in the habitable zone of their host stars.
https://knowledgezone.co.in/resources/gk/history/5b547c0d24c1440007e6ff00
Astronomers discover how some planets create their own oceans. New research reveals that sub-Neptune exoplanets can form vast amounts of water internally.
news-cafe.eu/?go=news&n=13799
#neptune #astronomy #space #cosmos #universe #science #research #nasa #kepler #planets #stars
Vídeo de la NASA sobre el remanente de la supernova de Kepler desde el Observatorio Chandra. ¿Cómo ha evolucionado esta explosión estelar durante 25 años?
#Vídeo #Nasa #Kepler #Astronomía #Tutiempo
https://www.tutiempo.net/noticias/video-la-nasa-revela-la-evolucion-de-la-supernova-de-kepler.html
225 jaar geleden werd Ceres gevonden
Op 1 januari 1801 ontdekte de Italiaanse priester, wiskundige en astronoom Guiseppe Piazzi de eerste asteroïde, die we nu Ceres
#asteroïde #ceres #dawn #dwergplaneet #kepler #piazzi #TitiusBode
https://www.kuuke.nl/225-jaar-geleden-werd-ceres-gevonden/
Kepler-90 vs Our Solar System
#UnDiaComoHoy 27 de diciembre de 1571 nace Johannes #Kepler, #astrónomo y filósofo alemán
#27Dezember
Johannes #Kepler wurde 1571 (nach julianischem Kalender) in Weil der Stadt in #Württemberg geboren. Er starb am 15. November 1630 (nach gregorianischem Kalender) in #Regensburg. Eine seiner wesentlichen Arbeiten waren die Keplerschen Gesetze. Sie beschreiben die Bewegung der #Planeten um die #Sonne.
Weekly Update from the Open Journal of Astrophysics – 13/12/2025
It’s time once again for the usual Saturday morning update of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published a further five papers, which brings the number in Volume 8 (2025) up to 195, and the total so far published by OJAp up to 430.
The first paper this week is “Cosmic Rays Masquerading as Cool Cores: An Inverse-Compton Origin for Cool Core Cluster Emission” by Philip F. Hopkins (Caltech), Eliot Quataert (Princeton), Emily M. Silich, Jack Sayers, Sam B. Ponnada and Isabel S. Sands (Caltech). This was published on Tuesday 9th December 2025 in the folder marked High-Energy Astrophysical Phenomena. It presents an argument that cosmic-ray inverse-compton emission could contribute significantly to the X-ray surface brightness (SB) in cool-corre clusters, implying that gas densities may have been overestimated therein.
The overlay is here:
You can find the officially accepted version on arXiv here and the Fediverse announcement is here:
Open Journal of Astrophysics
New Publication at the Open Journal of Astrophysics: "Cosmic Rays Masquerading as Cool Cores: An Inverse-Compton Origin for Cool Core Cluster Emission" by
Philip F. Hopkins (Caltech), Eliot Quataert (Princeton), Emily M. Silich, Jack Sayers, Sam B. Ponnada and Isabel S. Sands (Caltech)
https://doi.org/10.33232/001c.154053
1 boosts 0 favoritesThe second paper of the week is “Detecting False Positives With Derived Planetary Parameters: Experimenting with the KEPLER Dataset” by Ayan Bin Rafaih (Aitchison College, Lahore, Pakistan) and Zachary Murray (Université Côte d’Azur, France). This one was published on 9th December 2025 in the folder Earth and Planetary Astrophysics. It is an investigation into the performance of a range of machine-learning algorithms on the KEPLER dataset, using precision-recall trade-off and accuracy metrics.
The overlay is here:
You can find the official version of this one on arXiv here. The federated announcement on Mastodon is here:
Open Journal of Astrophysics
New Publication at the Open Journal of Astrophysics: "Detecting False Positives With Derived Planetary Parameters: Experimenting with the KEPLER Dataset" by Ayan Bin Rafaih (Aitchison College, Lahore, Pakistan) and Zachary Murray (Université Côte d’Azur, France)
https://doi.org/10.33232/001c.154054
1 boosts 0 favoritesNext one up is “The role of peculiar velocity uncertainties in standard siren cosmology” by Chris Blake and Ryan J. Turner (Swinburne, Australia). This paper discusses the impact of peculiar velocities on the error in H0 determinations from local distance indicators with observed redshifts, incorporating the effect of bulk flows. It was published on Tuesday 9th December in the folder Cosmology and Nongalactic Astrophysics.
The overlay is here:
You can find the official accepted version on arXiv here. The fediverse announcement is here:
Open Journal of Astrophysics
New Publication at the Open Journal of Astrophysics: "The role of peculiar velocity uncertainties in standard siren cosmology" by Chris Blake and Ryan J. Turner (Swinburne, Australia)
https://doi.org/10.33232/001c.154055
1 boosts 0 favoritesThe fourth article of the week is “Transient QPOs of Fermi-LAT blazars with Linearly Multiplicative Oscillations” by P. Penil (Clemson University, USA) and 7 others based in the USA, Italy and Germany. This was published on Thursday 10th December in the folder High-Energy Astrophysical Phenomena. This paper presents an investigation of patterns of quasi-periodic oscillations in observed blazar systems characterized by periodic multiplicative amplitudes including both the periodicities and long-term variations. The overlay is here:
You can find the official published version on arXiv here. The Fediverse announcement follows:
Open Journal of Astrophysics
New Publication at the Open Journal of Astrophysics: "Transient QPOs of Fermi-LAT blazars with Linearly Multiplicative Oscillations" by P. Penil (Clemson University, USA) and 7 others based in the USA, Italy and Germany
https://doi.org/10.33232/001c.154123
0 boosts 1 favoritesThe last paper for this week is “Tidally Delayed Spin-Down of Very Low Mass Stars” by Ketevan Kotorashvili and Eric G. Blackman (U. Rochester, USA). This was published on Friday 12th December (yesterday) in the folder Solar and Stellar Astrophysics. It discusses the effect of tides from sub-stellar companions on rotational evolution of very low-mass stars, suggesting that these may explain the dearth of field, late-type M dwarfs with intermediate rotation periods.
The overlay is here:
You can find the officially-accepted version on arXiv here, and the Mastodon announcement is here:
Open Journal of Astrophysics
New Publication at the Open Journal of Astrophysics: "Tidally Delayed Spin-Down of Very Low Mass Stars" by Ketevan Kotorashvili and Eric G. Blackman (U. Rochester, USA)
https://doi.org/10.33232/001c.154268
1 boosts 0 favorites
And that concludes the update for this week. I will do another of these regular announcements next Saturday, which will be the last such update for 2025. Will we make it past 200 for the year? Tune in next week to find out!
#arxiv241117916v3 #arxiv250713906v3 #arxiv250718712v2 #arxiv250813801v2 #arxiv250903101v2 #blazars #coolCoreClusters #cosmicRays #cosmologyAndNongalacticAstrophysics #diamondOpenAccess #diamondOpenAccessPublishing #earthAndPlanetaryAstrophysics #fermiLat #highEnergyAstrophysicalPhenomena #kepler #machineLearning #openAccess #openAccessPublishing #openJournalOfAstrophysics #peculiarMotions #quasiPeriodicOscillations #solarAndStellarAstrophysics #standardSirens #theOpenJournalOfAstrophysics #tidalSpinDown #transientAstronomy #veryLowMassStars
¿DELETREANDO A DIOS? La ciencia como teología cósmica
🌌 Si el universo es un reloj de alta precisión, ¿quién es el relojero? Científicos clave (Planck, Newton) vieron la ciencia no como ateísmo, sino como la confirmación de un engranaje cósmico perfecto.
¡Rebloguea si crees en la armonía entre la ciencia y la espiritualidad!
Sigamos explorando esta intrigante conexión.
Más: https://filosofiarespuesta.com/esta-la-ciencia-explicando-como-funciona-dios/
Mis redes https://linktr.ee/alonsoaceves.
#martínalonsoacevescustodio #cienciayfe #kepler
No riddle this time, or perhaps a very big one. Did you know that the Great Pyramid is roughly proportional to the sides of Kepler's triangle? The what? Yes, you heard that right.
#maths #geometry #goldenratio #kepler #pseudoscience #hiddenarcheology
Tonight between clouds
#moonlight #moon #lune #wolfmoon #fullmoon #normandie #france #tycho #kepler #copernic #crater #cratere #nikon #nikkor #exposure #lunarcrater #TychoCrater #lunarseas
Kep1er -- Xiaoting
I love this look. I'm praying that I can like, if not love, Kepler's next comeback after a couple of disappointments.
Talking about #Expedition33 and being left out of the #Grammy, #Asmongold picks up the story.
https://www.youtube.com/watch?v=PjZKBYLvilU
Yeah, I agree, they were handing prizes but not they do propaganda for their own artists.
#Videogames #Gaming #Games #ClairObscurExpedition33 #ClairObscur #France #SandfallInteractive #JRPG #RPG #Kepler #KeplerInteractive #TheGrammy #Grammys #Music #Soundtrack
