Society/Future/Catastrophes/Large_Near_Earth_Object_Impacts
Society/Issues/Warfare_and_Conflict/Planetary_Defense
or even,
Science/Anomalies_and_Alternative_Science/Astronomy,_Alternative
more information (editors only)
Society/Future/Catastrophes/Large_Near_Earth_Object_Impacts
Society/Issues/Warfare_and_Conflict/Planetary_Defense
or even,
Science/Anomalies_and_Alternative_Science/Astronomy,_Alternative
more information (editors only)