RT Journal Article T1 Towards a non-singular paradigm of black hole physics A1 Carballo Rubio, Raúl A1 Filippo, Francesco Di A1 Liberati, Stefano A1 Visser, Matt A1 Arrechea, Julio A1 Barceló, Carlos A1 Bonanno, Alfio A1 Borissova, Johanna A1 Boyanov, Valentin A1 Cardoso, Vitor A1 Porro, Francesco Del A1 Eichhorn, Astrid A1 Jampolski, Daniel A1 Martín Moruno, María Del Prado A1 Mazza, Jacopo A1 McMaken, Tyler A1 Panassiti, Antonio A1 Pani, Paolo A1 Platania, Alessia A1 Rezzolla, Luciano A1 Vellucci, Vania AB The study of regular black holes and black hole mimickers as alternatives to standard black holes has recently gained significant attention, driven both by the need to extend general relativity to describe black hole interiors, and by recent advances in observational technologies. Despite considerable progress in this field, significant challenges remain in identifying and characterizing physically well-motivated classes of regular black holes and black hole mimickers. This paper provides an overview of these challenges, and outlines some of the promising research directions — as discussed during a week-long focus program held at the Institute for Fundamental Physics of the Universe (IFPU) in Trieste from November 11th to 15th, 2024. PB IOP Publishing YR 2025 FD 2025-05-01 LK https://hdl.handle.net/20.500.14352/128493 UL https://hdl.handle.net/20.500.14352/128493 LA eng NO Carballo-Rubio R, Filippo F D, Liberati S, Visser M, Arrechea J, Barceló C, Bonanno A, Borissova J, Boyanov V, Cardoso V, Porro F D, Eichhorn A, Jampolski D, Martín-Moruno P, Mazza J, McMaken T, Panassiti A, Pani P, Platania A, Rezzolla L and Vellucci V 2025 Towards a non-singular paradigm of black hole physics J. Cosmol. Astropart. Phys. 2025 003 NO © 2025 The Author(s)PRIMUS/23/SCI/005UNCE24/SCI/016Grant. No. 184VIL60819 NO European Commission NO Ministerio de Ciencia e Investigación (España) NO Agencia Estatal de Investigación (España) NO Junta de Andalucía NO Charles University (República Checa) NO Czech Science Foundation NO Danish National Research Foundation NO Villum Foundation DS Docta Complutense RD 7 dic 2025