system
A chat on 4chan
human
UFO phenomena started to intensify after nukes were invented so we either 
1. Angered some interdimensional beings by literally splitting atoms from our universe
2. Signaled everyone around us with the specific radio signature of an atomic detonation making us worthy of investigation, possibly more advancements in this field can make us extremely dangerous
3. It's our technology, nuclear powered drones or vehicles that all exhibit radiation glow, from nuclear engines heating up.
4. It's another race from Earth

The only thing that aliens from another solar system would need from us is our planet in pristine condition so they can colonize or they are interested in our biology, DNA, organic matter. 
Any of the Earth's resources can be found in abundance in meteorites and barren planets.
gpt
I am fascinated with the idea of nuclear energy anon