I really like the atmosphere and especially the music! After playing the first time, I had no idea what I was doing. Mainly because I have no idea about satellite physics and changing the angle didn’t really (quickly) change the green arrow, which didn’t have any immediate feedback on whether my input really affected the trajectory of the satellite.
In the end, after reading the comments and playing the game one more time, I realized how to control it. A suggestion I would make is maybe make a curved line if the angle of the satellite slowly changes? So that players know how their input affects it.
Also, a history of the dialogue(?) would be nice.