Ancient Crater
Concept · Stellaris 4.5.2
Ancient Crater in the Stellaris encyclopedia: Anomalous seismic activity has been detected from deep inside an ancient crater on our homeworld. Underground sonar revealed a previously unknown cavity that can be explored.
Ancient Crater in the game's words
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Anomalous seismic activity has been detected from deep inside an ancient crater on our homeworld. Underground sonar revealed a previously unknown cavity that can be explored.
Source: common/game_concepts (concept_riftworld_digsite) and localisation/english, Stellaris Cygnus v4.5.2 (9776).