The study of the dynamics of epistemic objects in the history of science has been a major concern in the field of HPS in recent years. Jaume Navarro has devoted a significant part of his work to the history of the 19th and 20th centuries as a recalcitrant object in physics. Urko Gorriñobeaskoa has followed this path while developing a framework for the historiography of epistemic objects in general. José Luis Granados studies the emergence and development of the Earth System as an epistemic object during the 20th century. 

The boundaries between what is known as classical physics and modern physics have been fruitfully disputed by both historians and philosophers of physics in recent literature. Following this line, Jon Pérez and Amaia Corral explore the paradoxes emerging from the concept of infinite. From a philosophical standpoint, Beñat Monfort reflects on the epistemic value of non-empirical physics in modern cosmology. In a more historical manner, Jaume Navarro and Urko Gorriñobeaskoa's work on the ether also deal with the contingency of this demarcation. 

Most of the historically oriented works of the group point at the idea that science develops in a more pluralistic manner than it may seem at first glance. The philosophical implications of such pluralism are deeply explored by Joseba Pascual, whose work focuses on the classification and assessment of the diverse versions of pluralism in current literature. 

The relations between science and other major forms of epistemic and cultural activities are a main concern of the group. Jaume Navarro's work has revolved around the historical origins of the conflic thesis in the science-religion debate and its reception in Spain. Most recently, he has co-edited a volume on Science, Religion and Nationalism with Routledge. Further connections between science and culture have been explored by Bárbara Jiménez within the oeuvre of Charles Darwin.