Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Astro 191r can be substituted for Physics 191r for the Honors Physics concentration if (1) you are a joint Physics and Astro concentrator, and/or (2) you have demonstrated a strong interest in Astro. “Strong” here means that you have taken two Astro classes, or have taken one Astro class and done some research in the field.
