Heads up! For most of you taking the course, you may already be comfortable with using APIs and you may already know about HTTPS, JSON and AJAX requests. However, for those who are still uncertain about these topics, before you head to the next video where we start working with the SpaceX API using fetch(), we have added a bonus section for you to get caught up. Head on over to Bonus: HTTP, AJAX, JSON and APIs and come back here once done :)