The goal of this workshop is to focus on recent progress in research of core-collapse supernovae, circumstellar interaction in cosmic explosions and supernova remnants, with an emphasis on linking models to observations. Contributions will be in the form of invited talks and posters. Registration will include an evening boat cruise with dinner in the Stockholm archipelago. Starting date for registration is March 30, 2011. Confirmed invited speakers (by 2011-03-29) are: E. Berger (CfA, Harvard) J. Blondin (North Carolina State Univ.) N. Bucciantini (NORDITA) A. Burrows (Princeton Univ.) I. Cherchneff (Basel) R. Chevalier (Univ. of Virginia) N. Chugai (INASAN, Moscow) T. Dahlen (STScI) V. Dwarkadas (Univ. of Chicago) R. Fesen (Dartmouth College) C. Fransson (Stockholm) K. Heng (ETH Zürich) H.-T. Janka (MPI, Garching) R. Kirshner (CfA, Harvard) R. Kotak (Belfast) O. Krause (MPI, Heidelberg) S. Kulkarni (Caltech) B. Leibundgut (ESO, Garching) P. Lundqvist (Stockholm) S. Mattila (Univ. of Turku) R. McCray (Univ. of Colorado) M. Modjaz (Columbia Univ.) E. Nakar (Tel Aviv) S. Ng (McGill Univ.) K. Nomoto(Univ. of Tokyo) S. Park (Univ. of Texas, Arlington) A. Pastorello (Belfast) B. Schmidt (MSO, Australian National Univ.) S. Smartt (Belfast) A. Soderberg (CfA, Harvard) J. Sollerman (Stockholm) M. Stritzinger (Stockholm) Scientific Organizing Committee: Local Organizing Committee: R. Chevalier (Univ. of Virginia; Co-chair) A. Filippenko (Berkeley) R. Kirshner (CfA, Harvard) B. Leibundgut (ESO, Garching) P. Lundqvist (Stockholm; Co-chair) R. McCray (Univ. of Colorado) G. Östlin (Stockholm) A. Soderberg (Harvard, CfA) B. Schmidt (MSO, Australian National Univ.) S. Åberg (Stockholm) M. Ergon (Stockholm) S. Gelato (Stockholm) A. Jerkstrand (Stockholm) J. Larsson (Stockholm) N. Lundqvist (Stockholm) P. Lundqvist (Stockholm) G. Östlin (Stockholm) Sponsors: