The introduction of Player Positioned Beacons usable by others has been floating around the forums since at least early in 2.2.
The number of ways such devices could be used for emergent content is very interesting.
The few I can think of...
Race Course and meeting markers/waypoints
Marking/highlighting/preserving High value items found in POI's (as well as, perhaps, preserving the POI itself for a limited time)
Stimulating other POI signals into Super Cruise Space (Pirates... me thinks you would have another ambush mechanic!)
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Real world Prospecting/Mining is about finding the resources, determining a rough concentration, marking the location, claiming it, and then bringing in the heavy machinery to extract and process the material.
(note: sometimes they don't all go in that specific order - Claim Jumping was... and still is... a thing at times)
Today we have satellites providing spectrographic data and ground penetrating RADAR joining the good old fashioned Hydrology, acoustical seismology, and Geo-chemistry to help us understand what lies beneath our feet... what might they have in 3304?
New (physical and scientific) tools for both Prospecting and Mining should include everything required to learn about (i.e. "research"), discover, mark, sample, extract and process the various materials for use that we find or have yet to find in the Galaxy.
Distant Worlds II is betting that some of these expectations will be met or exceeded.
Good luck, FDEV
"What if they find one of these... What a journey that little fellow might have taken" - Thoroughly misquoting Astronaut and Scientist, Jack Schmitt, Apollo 17, in the HBO Mini-series "From the Earth To the Moon"