Science

Earliest Evidence of Tectonic Motion Found at 3.48 Billion Years

Researchers have identified the earliest evidence of tectonic motion on Earth, indicating that continental plates began moving as early as 3.48 billion years ago, according to a study published in Science. By analyzing magnetic traces from ancient crust in Western Australia and South Africa, scientists documented relative plate motion, marking this as the earliest instance of such movement by over 500 million years. This discovery has implications for understanding the development of Earth's habitability and the onset of plate tectonics.

Study Revises Monte Verde Site Age to 4,200-8,200 Years

A new study led by researchers from the Pontifical Catholic University of Chile suggests that the Monte Verde archaeological site, previously believed to date back 14,500 years, may actually be between 4,200 and 8,200 years old. This re-evaluation, based on sediment analysis and geological changes in the area, challenges established timelines of human migration into the Americas, although the findings have sparked debate among experts, with some arguing that the evidence for earlier human presence remains robust.