Galacte
Anything with space, stars, planets, or something that goes boom in the sky.
That movie about aliens? Galacte. That movie about a guy who forgets his password? Not so much.
That game you play on your phone? Galacte. That game you play when you’re sad? Also galacte.
That spaceship? Galacte. That spaceship that crashes into your house? Also galacte.