Click a screen saver on the left, then set options for how it will look on the right. On your Mac, choose Apple menu System Preferences, click Desktop & Screen Saver, then click Screen Saver. This includes classic Aerial videos shot over various cities and locations (New York, San Francisco, China.), Earth videos from the ISS, and the new underwater videos introduced in tvOS 13.

Aerial is a macOS screensaver that lets you play Aerial videos from Apple's tvOS screensaver.

That’s because Aerial allows you to turn your Mac or MacBook into an Apple TV of sorts by displaying the gorgeous videos that Apple’s streaming box uses as its screensaver.