Signs from the Sky and the Silence of the Cosmos

This paper examines a series of historical and astrophysical anomalies—ranging from ancient geoglyphs and medieval sky chronicles to modern radar encounters, the WOW! signal, and the repeating FRB 121102—in order to explore how cultures interpret the unknown. Rather than framing these events as evidence of extraordinary phenomena, the study analyzes them as epistemic artifacts situated at the intersection of perception, symbolic cognition, and scientific explanation. By integrating insights from cultural astronomy, history of science, anthropology, and high‑energy astrophysics, the article argues that “cosmic silence” is not an absence of communication but a conceptual space that exposes the limits of human interpretation. The result is a cross‑disciplinary reflection on how societies negotiate uncertainty and construct meaning when confronted with the enigmatic.