- The Astrophysical & Planetary Sciences Friday Lunch Seminar (APSFLS): 12:00 pm. Speakers are junior scientists.
- ATOC Colloquium: Held every other Friday from 11:00 am-12:00 pm.
- Applied Math Colloquia
- CU Astronomy Club
- SBO Telescope Open House: Open house at Sommers-Bausch Observatory events are once again in-person (see link for mask and distancing requirements) with one virtual session per month for those who can't get to campus.