Public Lectures

  1. 2025 Oct 19, “Grenzen van de ruimte”, with Carsten Dominik and Martijn van Calmthout, Brainwash Festival, Melkweg, Amsterdam.

  2. 2025 Sep 26, “Anton Pannekoek: Revolutionair sterrenkundige”, public lecture at Metius: Alkmaarse Weer- & Sterrenkundige Vereniging, Alkmaar.

  3. 2024 Apr 16, “Leven en werk van Anton Pannekoek”, public lecture at Sterrenkundige Kring Minnaert, Utrecht.

  4. 2023 Jan 27, “Anton Pannekoek”, public lecture at Volkssterrenwacht Bussloo.

  5. 2019 Nov 30, “Anton Pannekoek’s marxistische melkweg”, Salon Boerhaave-lezing “Sterrenstelsels”, Kosmos: Kunst & Kennis, Museum Boerhaave, Leiden.

  6. 2019 May 28, “Anton Pannekoek en de Universiteit Leiden”, Dirk van Eck-lezing “Stad en Universiteit”, Historische Vereniging Oud Leiden.

  7. 2018 Feb 15, “Anton Pannekoek” Public lecture at Triangulum, Vereniging voor Weer- en Sterrenkunde, Apeldoorn.

  8. 2015 Nov 07, “Anton Pannekoek”, Museumn8 2015, SMBA, Amsterdam.

Conference and Workshop Papers

  1. 2024 Sep 27, “The Workflow of Astrophotographic Research at Leiden Observatory, 1920-1960”, DFG Workshop Photography’s Materialities in the History of Science, University of Regensburg.

  2. 2024 Aug 29, “Capturing the Southern Skies: Leiden Observatory’s Search for a Southern Station in the Netherlands East Indies and South Africa”, Workshop The Histories of (Post-)Colonial Universities in the Netherlands, Wageningen University and Research.

  3. 2023 Dec 01, “Materiality of Astrophotography”, 1st History & Philosophy of Physics in the Netherlands Workshop, Utrecht University (online).

  4. 2023 Sep 14, “The Role of Human Computers at Astronomical Laboratories: Invisible Astronomical Labor in the Netherlands, 1880-1940”, 7th Biennial Kathleen A. Zar Symposium: Invisible Labor in Astronomy, University of Chicago.

  5. 2023 Mar 13, “Securing the Southern Skies: Leiden Observatory’s Search for a Southern Station in the Netherlands Indies and South Africa, 1918-1924”, Workshop Scientism and Empire, University of Regensburg.

  6. 2022 Aug 08, “Securing the Southern Skies: Astrophotography and Leiden Observatory’s Search for a Southern Station”, in: “Science and Infrastructures of Science”, Tenth Conference of the European Society for the History of Science, Brussels.

  7. 2022 Jun 09, “Astronomical Laboratories and the Global Networks of Dutch Astrophotography”, History of Astronomy Workshop XVirtual, University of Notre Dame (online workshop).

  8. 2021 Dec 07, “The Global Networks of Dutch Astrophotography”, in: “How Photography Transformed the Modern Observatory”, AHRC Observatory Networks Workshop 1: Absorbing, Adapting and Influencing New Technologies, Royal Museums Greenwich (online workshop).

  9. 2020 Feb 12, “Anton Pannekoek and the Global Division of Labour in Astrophotography”, British Society for the History of Science Twitter Conference #BSHSGlobalHist. https://www.bshs.org.uk/bshsglobalhist-the-papers

  10. 2019 Jul 26, “Precision and Skepticism as Epistemic and Social Virtues in Anton Pannekoek’s Astrophysics”, in: “Cosmic Stories: Astrophysics and the Invention of Cosmology in the Early 20th-Century”, History of Science Society 2019 Annual Meeting, Utrecht.

  11. 2019 Feb 15, “Precision and Exactitude in the Spectral Analysis: How Conviction and Circumstance Shaped Anton Pannekoek’s Scientific Persona and Practice”, Seventh Low Countries History of Science and Humanities PhD Conference, Kerkrade.

  12. 2018 Jun 15, “Astrophysics, Marxism, and the Role of Science in Society: Exploring the Ideal Scientific Personae of Anton Pannekoek”, Self-Fashioning Scientific Identities in the Long Nineteenth Century, University of Leicester.

  13. 2018 Mar 9, “Biography and Diversity in History of Science”, Scientist Biographies: A Workshop, Delft University of Technology.

  14. 2017 Jul 8, “Anton Pannekoek and the Dutch School of Astrophysics”, Thirteenth Biennial History of Astronomy Workshop, University of Notre Dame.

  15. 2017 Apr 17, “Pannekoek, Minnaert, and the Birth of Dutch School of Astrophysics”, First Teylers Meeting on History of Astronomy and Physics, Teylers Museum.

  16. 2017 Jan 12, “Astronomy and Social Progress: On the Social Virtues of Science in the Historical Work of Anton Pannekoek”, Sixth Low Countries History of Science PhD-Conference, De Glind, Netherlands.

  17. 2016 Jun 6, “How to Observe the Milky Way: Pannekoek’s Galactic Research and his Marxist Philosophy of Mind”, Anton Pannekoek (1873-1960): Ways of Viewing Science and Society, Royal Netherlands Academy of Arts and Sciences, Amsterdam.

  18. 2015 Aug 28, “Left Radicalism and the Milky Way: Connecting the Socialist and Scientific Virtues of Anton Pannekoek”, Epistemic Virtues in the Sciences and the Humanities, Descartes Centre for the History and Philosophy of the Sciences and the Humanities, Utrecht University.

  19. 2015 Jun 19, “Human Virtues and the Ideal Scientist: Post-disciplinary Perspectives on Einstein and Pannekoek”, with Jeroen van Dongen, Sixth Gewina Meeting of Historians of Science in the Low Countries, Woudschoten, Zeist.

  20. 2015 Jan 23, “How to Represent the Milky Way: Searching for the Relations between the Astronomy and Marxism of Anton Pannekoek”, Fifth Low Countries History of Science PhD-Conference, Rolduc Abbey, Kerkrade.

  21. 2014 May 24, Objectiviteit of interpretatie? Het Melkwegonderzoek van Kapteyn en Pannekoek door het kader van epistemische waarden. Workshop Tweede Wetenschappelijke Revolutie, Museum Boerhaave, Leiden.

Colloquiums, Seminars, Master Classes, and Guest Lectures

  1. 2024 Nov 11, “Capturing the Southern Skies: Leiden Observatory’s Search for a Southern Station, and the Astrophotographic Workflow it Enabled”, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  2. 2024 Jun 05, “A Material History of Astrophotography”, Ringvorlesung Photography and the Sciences, University of Regensburg.

  3. 2022 Dec 14, “Minor Planet Photography: A Material History of Mundane Discoveries”, with Torsten Bendl, University of Regensburg (online).

  4. 2022 Nov 23, “The Materiality of Astrophotography and the Mundane Discovery of Minor Planets”, Friedrich Steinle Master Class, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  5. 2022 Jan 27, “Producing Astrophotographic Knowledge: Glass Plate Photography at Leiden Observatory, 1890–1960”, Oberseminar Perspectives in the History of Science, University of Munich (online).

  6. 2021 Nov 19, “Producing Astrophotographic Knowledge: Glass Plate Photography at Leiden Observatory, 1890–1960”, University of Regensburg (online).

  7. 2021 Mar 26, “Anton Pannekoek, Marxist Astronomer: Photography, Epistemic Virtues, and Political Philosophy in Early-Twentieth Century Astronomy”, PhD Defence Ceremony, University of Amsterdam. Online.

  8. 2019 Oct 17, “Anton Pannekoek on the Social Relevance of Astrophysics”, Karine Chemla Master Class, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  9. 2019 Mar 25, “Marxist Astronomer: On Anton Pannekoek’s Scientific Research, and its Relation to his Socialism”, Einstein Papers Project, California Institute of Technology, Pasadena.

  10. 2019 Jan 18, “Anton Pannekoek and the Development of Early 20th Century Astronomy”, European Space Research and Technology Centre (ESTEC), Noordwijk.

  11. 2017 Dec 07, “Anton Pannekoek’s Astrophysics: Epistemic Virtues and Scientific Practice”, Lorraine Daston Master Class, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  12. 2017 Sep 21, “Anton Pannekoek’s Astronomical Research”, Jeremy Butterfield Master Class, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  13. 2017 May 02, “Left Radicalism and the Milky Way: Connecting the Scientific and Socialist Virtues of Anton Pannekoek”, American Institute of Physics, College Park, MD.

  14. 2016 Oct 06, “Anton Pannekoek: A Lifetime of Astronomy and Marxism”, Anton Pannekoek Institute for Astronomy, University of Amsterdam.

  15. 2016 Apr 28, “The ‘Great Debate on the Scale of the Universe’ in the Netherlands”, Freudenthal Institute for Science and Mathematics Education, Utrecht University.

  16. 2016 Jan 12, “The Extraordinary Adventures of a Marxist Astronomer: Histori(ographi)cal Perspectives on the Astronomical Research of Anton Pannekoek”, “What-is-my-Thesis” Workshop, Utrecht University.

  17. 2015 Mar 12, “Left Radicalism and the Milky Way: Connecting the Socialist and Scientific Virtues of Anton Pannekoek”, Freudenthal Institute for Science and Mathematics Education, Utrecht University.

  18. 2014 Aug 17, “The Scientific and Political Persona: Searching for the Interrelations in the Astronomy and Marxism of Anton Pannekoek”, Vossius Center for History of Humanities and Sciences, University of Amsterdam.

  19. 2013 May 30, “Anton Pannekoek on the Structure of the Milky Way: Epistemic and Socialist Virtues in Twentieth Century Astronomy”, Graduation Seminar, Institute for the History and Foundations of Science, Utrecht University.

  20. 2013 Apr 26, “Anton Pannekoek’s Research on the Structure of the Universe”, Anton Pannekoek Institute for Astronomy, University of Amsterdam.

  21. 2012 Oct 23, Anton Pannekoek: A Case Study in the Transition of Epistemic Virtues in Twentieth Century Astronomy”, Peter Galison Master Class, Descartes Centre for the History and Foundations of the Sciences and the Humanities, Utrecht University.