Caltech Astro Seminars

We are the Department of Astronomy and Astrophysics at the California Institute of Technology.  This channel broadcasts and records high-level research talks designed for professional astronomers as part of our colloquium and other seminar series.  All are welcome to watch these colloquium presentations; however, for talks specifically designed for the general public, please see our Caltech Astro Outreach channel: https://youtube.com/c/caltechastro. 

For more information about our department, please see: http://astro.caltech.edu .