Contact information for journalists:
I am happy to receive interview requests about my work or related topics (in either English or German). Preferentially by email, but in more urgent cases you can also call me, send me a message on Twitter, or contact me via Skype. All my relevant contact details are compiled here.
Recent interviews and articles quoting me (unrelated to press releases):
- “The Milky Way may be slowly devouring a hidden neighbouring galaxy“, by Leah Crane (New Scientist, Daily News) about our Magellanic Stream Leading Arm preprint, 02/01/2019
“Notre galaxie serait en train d’en dévorer une autre“, by Nelly Lesage (numerama), 02/03/2019
“Descubren «algo extraño» en los alrededores de la Vía Láctea“, by José Manuel Nieves (ABC), 02/04/2019
“Nuestra Vía Láctea parece estar tragándose a una desconocida galaxia más pequeña“, by Victor Román (N+1), 02/04/2019
- “The Universe | The Satellite Galaxy Problem“, interview on YouTube for SpaceWeatherNews, 03/14/2018
- “A gravidade é uma ilusão: o cientista que veio para corrigir Newton e Einstein“, by Tiago Cordeiro (Gazeta do povo), 01/31/2017
- Featured on Japanese TV show “Cosmic Front Next“.
- “Our Impossible Galaxy“, by Stuart Clark (New Scientist, cover story), 03/30/2016
Press releases, articles, and interviews covering my scientific work.
Press release about our PRL paper “Radial acceleration relation of ΛCDM satellite galaxies“
University of Bonn: “A galactic test will clarify the existence of dark matter”
I was interviewed about this work by Inverse.
Coordinated press release about our Science paper “A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology“
University of California, Irvine (me): “Distant galaxy group contradicts common cosmological models, simulations”
University of Basel (Oliver Müller): “Astronomie: Rotierendes System von Satellitengalaxien wirft Fragen auf”
Australian National University (Helmut Jerjen): “New study challenges popular theory about dwarf galaxies”
ESO Blog (interview with Federico Lelli): “Little Galaxies, Big Mysteries – Federico Lelli on what dwarf galaxies tell us about the cosmological model”
English: Scientific American, Los Angeles Times, Ars Technica, Forbes, Seeker.com, Gizmodo, New Scientist, Sky & Telescope, Popular Science, Astronomy.com, Daily Mail, Physics World, Cosmos Magazine, Newsweek, The Australian, The Conversation.
Video explanation by Oliver Müller and Federico Lelli.
You may have heard about a new study that challenges standard dark-matter cosmology. This thread by @8minutesold is a masterful piece of high-level outreach by one of the researchers behind that work. https://t.co/YSJxf3tley
— Corey S. Powell (@coreyspowell) February 4, 2018
What I *love* about this is that it’s good honest astronomical observations showing a potential crack in current paradigm, science in action! A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology https://t.co/JlBZvKn7uj — Caleb Scharf (@caleb_scharf) February 1, 2018
CWRU press release about “One Law to Rule Them All: The Radial Acceleration Relation of Galaxies“
Case Western Reserve University: “Case Western Reserve University research team finds radial acceleration relation holds in all common types of galaxies”
Five coordinated press releases about “Co-orbiting satellite galaxy structures are still in conflict with the distribution of primordial dwarf galaxies“:
Case Western Reserve University (me): “Nearby satellite galaxies don’t fit standard model”
Rochester Institute of Technology (David Merritt): “Map of universe questioned; dwarf galaxies don’t fit standard model”
Swinburne University (Duncan Forbes): “Nearby satellite galaxies challenge standard model of galaxy formation”
Australian National University (Helmut Jerjen): “Milky Way debris came from galaxy collision”
University of Vienna (Gerhard Hensler): “Neues ‘Geburtsszenario’ für Satellitengalaxien” (in German)
- English: e.g. Astronomy Magazine, New Scientist, Forbes, phys.org
- International: e.g. Tähdet ja avaruus (Finland), Espacio Profundo (Spain), O Globo (Brazilian), Teadus (Estonia), Wiener Zeitung (Austria), Tiroler Tageszeitung (Austria)
Royal Astronomical Society press release: “Do the Milky Way’s companions spell trouble for dark matter?“
Based on my paper: “The VPOS: a vast polar structure of satellite galaxies, globular clusters and streams around the Milky Way”. It was picked up by a number of news sites and blogs (in various degrees of correctness), a selection of which we list below. The Finnish Astronomy Magazine “Tähdet ja avaruus” interviewed and even featured me with a photo in their print edition (see photo to the right).
- National Geographic News interviewed me for their article: “Huge “Structure” of Satellites Found Orbiting Milky Way“
- Universe Today: “Newly Discovered Satellite Galaxies: Another Blow Against Dark Matter?”
- Popular Science: “New Study Finds Vast Galactic Network, No Sign of Dark Matter”
- Phys.org: “Do the Milky Way’s companions spell trouble for dark matter?”
- Space.com: “Dark Matter Theories Challenged By Satellite Galaxy Discovery“
- Knight Science Journalism Tracker: “Time Mag, Nat’l Geo: The latest on the rumor that dark matter is merely itself a rumor“
- The Daily Galaxy: “Vast Structure of Satellite Galaxies & Star Clusters Discovered Surrounding Milky Way –Nixes Existence of Dark Matter in Universe” (also mentioned on the Richard Dawkins Foundation for Reason and Science website)
- Galileo’s Pendulum: “Is Cosmology in Shambles?“
- In Danish: Astronomibladet.dk: “Mælkevejen har en sælsom “arm” af følgegalakser”
- In Dutch: EOS Wetenschap: “Begeleiders Melkweg ondermijnen bestaan donkere materie”
- In French: Futura-Sciences: “La matière noire pose une nouvelle énigme”
- In German: Welt der Physik: “Keine Dunkle Materie in der Milchstraße?“, Sterne und Weltraum: “Streit um die Dunkle Materie“
Interviewed by Nature.com Blog Of Schemes and Memes:
On the topic of being a PhD student.
Press release by the University of Bonn: “Kosmische Geisterfahrer” (Cosmic Wrong-Way Driver)
Based on my paper “ Making Counter-Orbiting Tidal Debris: The Origin of the Milky Way Disc of Satellites“. The press release was covered by a number of German media, including the print and online version of the local newspaper General-Anzeiger Bonn.
Press release by the University of Bonn: “Local-Group-of-galaxies study raises severe doubts as to the existence of dark matter” (in German)
Based on the paper “Local-Group tests of dark-matter Concordance Cosmology: Towards a new paradigm for structure formation“. This press release generated a lot of attention (articles in the Berliner Zeitung, Frankfurter Rundschau, der Standard and others). In addition to numerous calls by newspaper journalists for background infos and soundbites, I was interviewed for two radio programs, once together with Pavel Kroupa (for “Forschung Aktuell” in the Deutschlandfunk) and once on my own (for “Logo – das Wissenschaftsmagazin” in NDR Info).