Astroneer is getting new content and more on July 21st, 2022. The Rails update is on its way to Switch, and you can see what it has to offer above.
The main focus of this update allows players to build new train and railway systems. This will let you connect various points on your planet to easier traverse vast spaces. Each train can include 6 engines and cars. Once powered, these trains can run autonomously, making them perfect for transporting whatever you need.
If you want to see a lot more info on what the Rails update has to offer, you can see the official dev blog below.