9to5Mac:

Space fans with 4th-gen Apple TVs are in for a treat, as NASA has released its popular app on the platform. It was already available for iOS, Android and Fire OS, but this is the first time you’ve been able to access it directly on your Apple TV.

You get live streaming NASA TV, including a real-time view of the Earth from the International Space Station, as well as on-demand access to over 10,000 NASA videos and more than 15,000 photos, either individually or as a slideshow.

I can get completely lost in NASA imagery and putting it on the Apple TV so I have access to larger images sounds great.