Login as admin. Navigate to Site admin > General > Advanced features . Enable the RSS feeds. Navigate to Site admin > Plugin > Blocks > Manage Blocks. Enable the Remote RSS feeds. Navigate to the Dashboard. Turn on the edit mode. Click the "Add a block" button. Click the "Remote RSS feeds" On the popup dialogue "Add a block". Select the "Add new RSS feed" radio. Fill in the Feed URL with https://www.nasa.gov/feed/ . Set the "Show source link if available" to "Yes". Click the Save Changes button Wait for a few seconds as the system needs to grab the feed data. VERIFY  There is a "Source site" links at the right bottom of the feed channel. (This is for testing if a feed doesn't have the link) VERIFY  at the bottom of the RSS block there is a link "Manage all my feeds". Click the gear icon of the RSS block Click the "Configure NASA block" VERIFY the "Select existing RSS feed" radio is checked VERIFY the "Select the feeds to display in this block" dropdown has one feed "NASA", and it was selected.