Two six-sentence story ideas
A greedy alien pirate is traveling space for arcane booty… treasure that is. Upon inspecting a precious space stone, a massive black hole comes gliding through space and threatens the pirate and his booty. The struggle between greed and self-preservation begins. The alien attempts to retrieve the stone. When he realizes the stone is not worth it, he escapes the black hole just in time and continues his journey through the void.
A message is sent to an alien about lights not working in a lab. The alien inspects the light source to the room. When he opens the dome containing the “lights”, he is attacked by small photon-like beings. The small photons assault the alien, but the alien defends himself. He finally finds a way to trick the photons back into the containment dome. The alien succeeds in tricking the photons, and exits.