Yes, you can connect RSS feeds to a calendar in the Post Ideas tab of each Calendar Settings page:
You can leverage RSS feeds in one of two ways:
Generate Post Ideas from RSS entries with the RSS Post Ideas option
Automatically generate draft posts for all new RSS entries with the Assistive (Draft Posts) option
📝 Note: Get up to 90 Post Ideas assistive draft posts per month on a 30-day rolling window basis! If there are more than 90 articles in a 30-day time span, please wait until you are below the limit to have additional RSS feed entries imported.