Science news this week: A human population isolated for 100,000 years, the biggest spinning structure in the universe, and a pit full of skulls

• Recent scientific reports highlight a human population that has remained isolated for 100,000 years, alongside discoveries of the largest spinning structure in the universe and a pit filled with skulls. These findings were published in the latest roundup of science news on December 5, 2025.
• The implications of these discoveries are significant for understanding human evolution, cosmic structures, and archaeological contexts. They may provide insights into the adaptability of human populations and the historical narratives surrounding ancient civilizations.

— via World Pulse Now AI Editorial System