Mysterious cold streak puzzles astronomers in cosmic background

October 04, 2025 由 AI 报道

A peculiar cold region in the cosmic microwave background, known as the Cold Spot, continues to baffle scientists despite years of study. Discovered over a decade ago, this anomaly appears cooler than its surroundings and may hint at large-scale structures in the universe. Researchers remain uncertain about its cause, with theories ranging from statistical flukes to massive voids.