Navigating the Star Chart
Nodes & You
When looking at the star chart, you will see different nodes across the planets. There are blue nodes and white nodes. Blue nodes represent the missions you have not completed on a planet. In the example down below, you can see Kepler has not been completed on Phobos.
Unlocking Planets
In order to unlock planets, you need to make your way to the junction which is located along the way. Each planet has a junction with different requirements. As you can see in the picture below, the requirements of the Venus Junction from Earth. You must complete all of the requirements before going to the junction. Once you go to the junction, you will be completing a challenge. Once that is completed, you will unlock a new planet along with a few mission rewards.