Today is a landmark day for anyone who loves outer space. Not only is it International Space Day, it’s also Star Wars Day. May the Fourth be with you!

There are few places more interesting than outer space, and there’s a reason the cosmos has fascinated people for centuries. The universe is always expanding and evolving, plus it’s filled with amazing planets, stars, galaxies, nebulae, and more.

As anyone with an interest in astronomy will tell you, the night sky is a feast for both the eyes and the intellect, and with this in mind, we’ve made a quiz featuring some of the most stunning images from our astronomy books to challenge your interstellar knowledge.

Whether you’re new to stargazing or an experienced astronomer, you’re sure to appreciate the wonders of space captured in these photos.