Nature World News: A group of scientists, based on the well-known collision between Earth and a Mars-sized celestial body some 40 million years ago, have determined that Earth is in fact 60 million years older than previously thought.
Another recent study describes how scientists from Harvard University identified an echo of ancient Earth based off an isotopic signal. In this current study, geochemists from the University of Lorraine in Nancy, France have also based their findings on an isotopic signal, this time...