Daniel Ucko is an Associate Editor of Physical Review Letters (PRL). He received his Ph.D. in physics at University College London, UK, in 2001. Before joining PRL in 2004, he was a postdoctoral fellow at the University of Birmingham, UK, and at the low-energy muon beam of the Paul Scherrer Institute in Switzerland. While serving as a PRL editor, he built on his interest in philosophy of science and obtained a Ph.D. in philosophy in 2020 from Stony Brook University, New York, on the subject of peer review, which continues to be his main philosophical research interest.