Colloquia: Astronomy & Astrophysics colloquia and KICP colloquia - Usually Wednesdays, 3:30 PM, ERC 161, unless otherwise specified. Reception starts at 4:30 PM in Hubble Lounge (Astronomy & Astrophysics colloquia) and ERC 401 (KICP colloquia). Persons with a disability who believe they may need assistance, please call the departmental secretary in advance at 773-702-8203 or email