Inspired by old Atari games, where half the fun was figuring out what was going on. If you aren't into that here are some controls to get you started:
WASD - Movement
Space - Jump
Mouse - Fire Gun as Astronaut // Scan as Spaceship
(scanning your ship will show you what resources you need for upgrades and scanning planets will show you info about them including what resources they have)
There doesn't seem to be anything here.