“On the outside, it looked like an ordinary moon, but then we became suspicious.” Capt. Molly Daniels. USS Peregrine.
Today’s prompt is actually inspired by some real life theories about Earth’s moon. However, kindly bear in mind there is little more than a modicum of scientific backing for any of it. Our real moon “rang like a bell for over an hour” on seismic sensors when struck with a lander. To be clear- This IS a work of FICTION.
(Systemless) space game plot idea: The group comes upon a moon in geosynchronous orbit around an Earth-like planet. Sensor data indicates the moon is a normal, lifeless, meteorite-blasted rock. However, the moon is emitting electromagnetic signals coming from somewhere nearby. There are also ships coming and going from the system that seem to just disappear.
The planet’s government(s) are concerned about a potential invasion that they originally believed might be staged from the fourth planet in the system. They are a relatively new space-faring society and would be ill-equipped to fend off any kind of serious threat from outside of their own star system without help from the Federation (Or whatever larger organization the group represents.)
Closer inspection of the fourth planet in the system does not reveal any significant threat. However, careful examination of the third planet’s geosynchronous moon reveals cloaked bases, monitoring equipment, docking bays and the fact the the entire moon is a hollow sphere designed to watch over the Earth-like planet’s development.
Where things go from there is ultimately up to the GM. Is the civilization inside the moon benevolent? Perhaps sent to watch over the fledgling planet’s growth? Or is it a monitoring station to assist in a full scale invasion? Could it be a waypoint for refueling ships for a larger space navy elsewhere? Maybe it’s a galactic meeting place for races in all of the neighboring systems. The possibilities are immense.
Happy gaming! Thank you for stopping by. I appreciate you.