Knowledge panels are information boxes that appear on Google when you search for entities (people, places, organizations, things) that are in the Knowledge Graph. They are meant to help you get a quick snapshot of information on a topic based on Google’s understanding of available content on the web.
Google’s Knowledge Panel is the block you’ll find on the right side of your screen in the search results. Nowadays, you’ll see it for a lot of queries. It presents the results of Google’s Knowledge Graph, which can be seen as an engine connecting all kinds of data Google finds on the web. If you have a local, branded or personal panel, you might be able to influence what Google shows in the panel. Know more about google knowledge panel.