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EU Philosophy of Astronomy & Cosmology

@eu-phil-cosmo.bsky.social

273 followers 107 following 125 posts

Events, publications & news about the philosophy of astronomy & cosmology, especially within the EU. Posts by the UPAC research group, uu.nl/upac X: @EU_phil_cosmo Mastodon: @EU_phil_cosmo@hcommons.social

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 02/10/2026

The next UPAC colloquium reading session will take place on Tuesday (6 Oct 2026, 16h00-17h00), where we will be discussing the article "Holistic Versus Fragmented Multiverses" by Baptiste Le Bihan, arxiv.org/abs/2509.04918 More info: www.uu.nl/upac-colloqu...

Holistic Versus Fragmented Multiverses: Empirical Access via Causal and Grounding Signatures

Can multiverse hypotheses ever receive empirical support? Critics argue that multiverse scenarios posit unobservable entities, face severe underdetermination, or fall outside the bounds of science. Th...

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 28/09/2026

For the next UPAC colloquium Work in Progress session tomorrow (29 Sept 2026, 16h00-17h00), we will be discussing a draft by Sanne Vergouwen (Universiteit Utrecht) titled "Are Traversable Wormholes Physically Reasonable?" More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 02/09/2026

New collected volume on the history and philosophy of astronomy. www.cambridge.org/core/books/a...

Astronomy and Philosophy

Cambridge Core - Philosophy of Science - Astronomy and Philosophy

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 31/08/2026

Now online! Béatrice Bonga (Radboud University) on "Beyond the Basics: the Messy Reality of Gravitational Wave Ringdowns". UPAC colloquium from June 9th, 2026. www.youtube.com/watch?v=qFfT...

UPAC Colloquium June 2026 - Beyond the Basics: the Messy Reality of Gravitational Wave Ringdowns

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 24/07/2026

The recording of the UPAC colloquium held on May 12th, in which Nichole Levesley (University of Cambridge) gave a talk titled: "Limits of Knowledge in Early Universe Cosmology", has just been posted on our YouTube! youtu.be/4pTiq6OEh0E

UPAC Colloquium May 2026 - Limits of Knowledge in Early Universe Cosmology

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 06/07/2026

New paper on epistemic opacity in black hole imaging arxiv.org/abs/2607.02110

Black Boxes in Black Hole Imaging

We investigate the epistemic opacity of computer simulations and machine learning methods in the context of black hole imaging. We argue that there are forms of opacity-including opacity resulting fro...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 08/06/2026

The next UPAC colloquium speaker session will be held tomorrow (9 June 2026, 15h30-17h00), we will be hosting Beatrice Bonga (Radboud University), who will give the talk: "Beyond the Basics: the Messy Reality of Gravitational Wave Ringdowns". For more information, visit: uu.nl/upac-colloquium

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 26/05/2026

The next UPAC colloquium reading session will take place today (26 May 2026, 16h00-17h00), we will be discussing the article: “The poor man’s accelerator” by Gauvain Leconte-Chevillard, doi.org/10.1007/s112... More info: www.uu.nl/upac-colloqu...

“The poor man’s accelerator”, or how the primordial universe became a testing ground for particle physics - Synthese

Synthese - Among physicists and cosmologists, it is common practice to refer to the “cosmic laboratory” to describe how the study of the universe offers important insights into the...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 18/05/2026

For those of you who missed our recent Philosophy of Spin-2 Gravity Workshop, all the talks can now be seen in full on the UPAC YouTube Channel! (thread 1/6) www.youtube.com/@UPAC_UU/vid...

Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 11/05/2026

The next UPAC colloquium speaker session will be held tomorrow (12 May 2026, 15h30-17h00), we will be hosting Nichole Levesley (University of Cambridge), who will give a talk about the "Limits of Knowledge in Early Universe Cosmology". For more information, visit: uu.nl/upac-colloquium

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 06/05/2026

Tuesday 19 May the Descartes Colloquium will be in the theme of: 'Foundations of physics from quantum mechanics to cosmology.' Featuring Anastasiia Lazutkina addressing Evidence in Cosmology and Philip Goyal on the Quantum Reconstruction Programme! More info at: www.uu.nl/en/events/de...

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 27/04/2026

For the next UPAC colloquium Work in Progress session tomorrow (28 Apr 2026, 16h00-17h00), we will be discussing a draft by Aaron Collavini (Uni. of Udine) & Christian Mariani (USI Lugano) titled "On the viability of primitive ontology for cosmological theories" More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 23/04/2026

The Philosophy of Spin-2 Gravity workshop yesterday was a great success! Once again it brought together minds from philosophy and physics into a lively discussion. A wonderful conclusion to the four COSMO-MASTER workshops organised by UPAC.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 15/04/2026

The recording of the UPAC colloquium held on April 7th, in which Anastasiia Lazutkina (University of Wuppertal) gave a talk titled: "How evidence is made: Measuring the cosmic background radiation before discovering it", can now be found online! youtu.be/9P2wRBug6jY

UPAC Colloquium April 2026 - How evidence is made: Measuring the CMB before discovering it

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 10/04/2026

The next UPAC colloquium reading session will take place next Tuesday (14 Apr 2026, 16h00-17h00), where we will be discussing the article "(Re)Assessing Galaxy Clusters with Cosmological Models" by Tianzhe Cozette Shen, doi.org/10.1017/psa.... . More info: www.uu.nl/upac-colloqu...

(Re)Assessing Galaxy Clusters with Cosmological Models: Scales, Anisotropies, and Scientific Explanation | Philosophy of Science | Cambridge Core

(Re)Assessing Galaxy Clusters with Cosmological Models: Scales, Anisotropies, and Scientific Explanation - Volume 92 Issue 5

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/04/2026

Final call for our upcoming COSMO-MASTER Spin-2 Gravity workshop! The workshop will bring together physicists and philosophers to discuss spin-2 gravity. Registration deadline on April 15; both in-person and online attendance are possible. More information: www.uu.nl/en/research/...

Philosophy of Spin-2 Gravity Workshop

Information about the Philosophy of Spin-2 Gravity Workshop

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 06/04/2026

The next UPAC colloquium speaker session will be held tomorrow (7 Apr 2026, 15h30-17h00); Anastasiia Lazutkina [University of Wuppertal] will give a talk on "How evidence is made: Measuring the cosmic background radiation before discovering it". For more information, visit: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 23/03/2026

For the next UPAC colloquium Work in Progress session tomorrow (23 Mar 2026, 16h00-17h00), we will be discussing a draft by Andrés Vázquez Quijano (UNAM) titled "The Epistemic Effect of Ad hoc Hypotheses: Signaling and Management of Risk and Ignorance" More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/03/2026

The next UPAC colloquium speaker session will be held tomorrow (10 Mar 2026, 15h30-17h00), we will be hosting James Ladyman [University of Bristol], who will give a talk on "The open-closed system distinction and cosmology". For more information, visit: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 02/03/2026

The next UPAC colloquium reading session will take place tomorrow (3 Mar 2026, 16h00-17h00), where we will be discussing the article "Λ and the limits of effective field theory" by Adam Koberinski and Chris Smeenk, www.cambridge.org/core/journal... More info: uu.nl/upac-colloquium

Λ and the Limits of Effective Field Theory | Philosophy of Science | Cambridge Core

Λ and the Limits of Effective Field Theory - Volume 90 Issue 2

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 25/02/2026

The recording of the UPAC colloquium on February 10th, in which Rami Jreige (University of Bristol) gave a talk titled: "The Interpretation Problem of Direct Dark Matter Detection Experiments", can now be found on the UPAC YouTube channel! youtu.be/_rA-vY0-hPA?...

UPAC Colloquium February 2026 - Interpretation Problem of Direct Dark Matter Detection Experiments

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 23/02/2026

For the next UPAC colloquium Work in Progress session tomorrow (24 Feb 2026, 16h00-17h00), we will be discussing a draft by Aude Corbeel (University of Amsterdam) titled "Teleportation in the Lab: Analogue Gravity on a Quantum Computer?" More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/02/2026

The next UPAC colloquium speaker session will be held tomorrow (10 Feb 2026, 15h30-17h00), we will be hosting Rami Jreige [University of Bristol], who will give a talk on "The Interpretation Problem of Direct Dark Matter Detection Experiments". For more information, visit: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 30/01/2026

The next UPAC colloquium will take place on next week's Tuesday (3 Feb 2026, 16h00-17h00), where we will be discussing the article “The First Three Minutes: Cosmology, Astrophysics, and Particle Physics” by Siyu Yao, siyuyaogy.github.io/SY_Big%20His... More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 28/01/2026

Workshop: philosophy of spin-2 gravity & gravitational waves Utrecht, 22 April 2026 www.uu.nl/en/research/...

Philosophy of Spin-2 Gravity Workshop

Information about the Philosophy of Spin-2 Gravity Workshop

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 26/01/2026

For the next UPAC colloquium Work in Progress session tomorrow (27 Jan 2026, 16h00-17h00), we will be discussing a draft by Caspar Jacobs (Leiden University) & Niels Martens (Utrecht University) titled "The Nomic Status of Fundamental Constants of Nature" More info at: uu.nl/upac-colloquium

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 16/01/2026

The recording of the UPAC colloquium on January 6th, in which Siska de Baerdemaeker (Stockholm University) gave a talk titled: "Modeling (Dark Matter in) the Milky Way", can now be found online! youtu.be/g25lfXn2Cyw?...

UPAC Colloquium January 2026 - Modeling (Dark Matter in) the Milky Way

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 12/01/2026

What are PhD candidates working on the history, philosophy, and foundations of physics in the Netherlands doing these days? Find out at the next HPP-NL graduate meeting, taking place on the 30th of January in Amsterdam! More info at: hpp-nl.nl/2nd-hpp-nl-g...

2nd HPP-NL Graduate Meeting

On Friday January 30, 2026, the second HPP-NL Graduate Meeting will take place at the beautiful new UvA University Library. The goal of this meeting is to get to know fellow PhD candidates working on ...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/01/2026

The next UPAC colloquium will take place on next week's Tuesday (13 Jan 2026, 16h00-17h00), where we will be discussing the article "Controversy on the Materiality and Structure of Spacetime" by Rafael-Andrés Alemañ-Berenguer, link.springer.com/article/10.1... More info: www.uu.nl/en/research/...

link.springer.com

Client Challenge

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 18/12/2025

With the end of 2025 getting close, there is no better time than now to catch up with the UPAC colloquium speaker sessions! Recordings of the talks can be found on our YouTube channel. For example from this last semester, there are talks on: (thread 1/4) www.youtube.com/@UPAC_UU

Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 16/12/2025

New preprint by Simon Allzén @leviatan.bsky.social on dark matter philsci-archive.pitt.edu/27484/

philsci-archive.pitt.edu

Bayesian Unification in the History of Dark Matter: Confirmation by Restructuring Old Evidence - PhilSci-Archive

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 12/12/2025

New preprint on inflation, dark energy & the spacetime-matter dichotomy. arxiv.org/abs/2512.10775

Deflating the Spacetime-Matter Dichotomy

In this paper we analyse scalar-tensor theories-specific instances of which include mainstream inflation and dark energy models-in light of the spacetime-matter dichotomy. We argue that it is difficul...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 10/12/2025

Call for abstracts for the 3rd History and Philosophy of Cosmology conference, in Athens conferences.uoa.gr/event/117/

conferences.uoa.gr

History and Philosophy of Cosmology Conference - H&PCC 2026

The COSMOS Network is pleased to announce the 3rd History & Philosophy of Cosmology Conference, to be held 6–9 July 2026 at the University of Athens. Keynote Speakers Helen Meskhidze (University of Ci...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/12/2025

Beautifully illustrated science communication piece on black hole imaging, by Peter Galison et al. (Best viewed on a laptop/tablet.) planetaryvision.antikythera.org

planetaryvision.antikythera.org

Planetary Vision

The Event Horizon Telescope: It took a planet to see a black hole.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 09/12/2025

The recording of the UPAC colloquium speaker session on December 2nd, in which Marta Pedroni (University of Geneva) gave a talk titled "Singularity Resolution in Loop Quantum Gravity", has just been uploaded! youtu.be/noh_rdUSRh4?...

UPAC Colloquium December 2025 - Singularity Resolution in Loop Quantum Gravity

YouTube video by Utrecht Philosophy of Astronomy & Cosmology

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 08/12/2025

Aude Corbeel & Sebastian de Haro on black holes & quantum info philsci-archive.pitt.edu/27365/

philsci-archive.pitt.edu

Black Holes are about Quantum Information - PhilSci-Archive

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 08/12/2025

The next UPAC colloquium speaker session will be held tomorrow (9 Dec 2025, 15h30-17h00), we will be hosting Chris Smeenk [Western University], who will give a talk on "How Do We Measure Dark Matter?". For more information, visit: www.uu.nl/en/research/...

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 02/12/2025

Including lots of astronomy and cosmology chapters

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 01/12/2025

The next UPAC colloquium speaker session will be held tomorrow (2 Dec 2025, 15h30-17h00), we will be hosting Marta Pedroni [University of Geneva], who will give a talk on "Singularity Resolution in Loop Quantum Gravity". For more information, visit: www.uu.nl/en/research/...

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 30/11/2025

Dennis Lehmkuhl on the various interpretations of black hole singularities: link.springer.com/article/10.1...

link.springer.com

The Prediction and Interpretation of Singularities and Black Holes: From Einstein and Schwarzschild to Penrose and Wheeler - Physics in Perspective

The Schwarzschild solution was the first exact solution to Einstein’s 1915 field equations, found by Karl Schwarzschild as early as 1916. And yet, physicists, mathematicians and philosophers have stru...

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Reposted by EU Philosophy of Astronomy & Cosmology

Utrecht History & Philosophy of Science @utrechthps.bsky.social · 29/11/2025

Prof Chris Smeenk (Western Uni, London Ontario) will be giving the 2025 Beth Lecture, presenting his upcoming book with @jamesowenweatherall.com on the aim and structure of cosmological theory. 10 Dec 2025, Academiegebouw Utrecht, 19:30-21:00, followed by reception. hpp-nl.nl/events/beth2...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 24/11/2025

For the next UPAC colloquium Work in Progress session tomorrow (25 Nov 2025, 16h00-17h00), we will be discussing a draft by Antonio Ferreiro & Alex Fleuren (Utrecht University) titled "Another Critical Look at Inflationary Cosmology" More info at: www.uu.nl/en/research/...

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 18/11/2025

Beth Lecture 2025 by Prof Chris Smeenk, on closing the loop on inflation hpp-nl.nl/events/beth2...

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 12/11/2025

Antoniou & Lorenzetti analyse Modified Newtonian Dynamics: philsci-archive.pitt.edu/27152/1/Limi...

philsci-archive.pitt.edu

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 12/11/2025

Where are singularities located? Cudek answers: philsci-archive.pitt.edu/27127/1/Loca...

philsci-archive.pitt.edu

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 07/11/2025

The next UPAC colloquium will take place on next week's Tuesday (11 Nov 2025, 16h00-17h00), where we will be discussing the article "Excavation in the Sky: Historical Inference in Astronomy" by Siyu Yao, doi.org/10.1017/psa.2023.22 . More info: www.uu.nl/en/research/...

Excavation in the Sky: Historical Inference in Astronomy | Philosophy of Science | Cambridge Core

Excavation in the Sky: Historical Inference in Astronomy - Volume 90 Issue 5

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EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 03/11/2025

The next UPAC colloquium speaker session will be held tomorrow (4 Nov 2025, 15h30-17h00), we will be hosting Christian Röken [University of Bonn], who will give a talk on "Stationary Limit Surfaces of Black Holes". For more information, visit: www.uu.nl/en/research/...

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 27/10/2025

For the next UPAC colloquium Work in Progress session tomorrow (28 Oct 2025, 16h00-17h00), we will be discussing a draft by Antonios Papaioannou (University of Rennes) titled "Predictions in an Uncertain World" More info at: www.uu.nl/en/research/...

UPAC Colloquium

Learn more about the weekly, hybrid UPAC Colloquium series.

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 26/10/2025

What does it mean to detect dark matter? What forms of indirectness are at play? New chapter on dark matter epistemology is out now! philsci-archive.pitt.edu/27027/

philsci-archive.pitt.edu

Detecting the Dark: Indirectness & Dark Matter Epistemology - PhilSci-Archive

EU Philosophy of Astronomy & Cosmology @eu-phil-cosmo.bsky.social · 13/10/2025

The next UPAC colloquium will take place tomorrow, Tuesday (14 Oct 2025, 16h00-17h00), where we will be discussing the article "How Theory-Laden are Observations of Black Holes?" by Juliusz Doboszewski and Jamee Elder, philsci-archive.pitt.edu/24752/. More info: www.uu.nl/en/research/...

philsci-archive.pitt.edu

How Theory-laden are Observations of Black Holes? - PhilSci-Archive