Dominic Papineau, Boston College (IMAGE) Boston College Caption Boston College assistant professor of Earth and environmental sciences Dominic Papineau and colleagues report in the journal Nature Geoscience that carbon laced within ancient rock formations may be millions of years younger than the rock itself, raising questions about the evidence of the earliest signs of life. Credit Lee Pellegrini, Boston College Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.