Several innovative projects have been conducted at the Slovenian Third Age University (U3A), creating important new social practices. The project results impact exploratory learning as well as learning and development in the wider community. The aim of the paper is to describe selected research practices at the Slovenian U3A and to interpret them through the theory of expansive learning. In terms of methodology, the research is designed as ethnographic research with elements of the phenomenological and reflexive research paradigm. Selected examples of exploratory learning at the Slovenian U3A are used to identify the factors that influence the development of exploratory learning and the way they are experienced by those involved in exploratory learning processes. It has been found that expansive learning at the Slovenian U3A leads to innovative and socially engaged practices.