Apple TVのtv0S12にプリインストールされてる4K空撮のスクリーンセーバーのMac/PC向けのオープンソース版です。

Aerial is a Mac screensaver based on the new Apple TV screensaver that displays the Aerial movies Apple shot over New York, San Francisco, Hawaii, China, etc. Starting with version 1.4, this also includes the new ISS videos available in tvOS 12!

Aerial – Apple TV Aerial Views Screen Saver