As humankind extended its reach into nearby solar systems, the first of the artifacts were found. Their sizes and shapes were varied, some were the size of a football stadium, many were the size of small moons. Some were underground, some were found floating in the mists of gas giants. Each contained a single translucent orb at their core that emitted vast amounts of radiation. Many theories were given as to their existence: tools of a long dead interstellar race, the brains of a dormant alien AI, eggs for a space faring species waiting to hatch. As scientists explore and study the known artifacts, the more adventurous push out further to discover more. The artifacts became known as liths.
For Fans Of: SciFi Space Exploration, BDO (Big Dumb Objects)