Earth History

Researchers have uncovered how soft-bodied organisms from 570 million years ago were exceptionally preserved in sandstone, defying typical fossilization challenges. The discovery points to ancient seawater chemistry that formed clay cements around the buried creatures. This insight sheds light on the evolution of complex life before the Cambrian Explosion.

December 03, 2025 由 AI 报道

A new model suggests the moon formed from three large impacts on early Earth rather than a single giant collision. This approach better explains the compositional similarities between Earth and the moon. Researchers propose that moonlets from these impacts merged over time to create our satellite.