Trace fossils indicating the first signs life on Earth or just deformed rock? Researchers previously interpreted several anomalies (yellow arrows) found in 3.7 billion-year-old rock as the oldest evidence of life, but a new study, which focused on one portion of the sample (blue box), questions the previous findings. (Credit Allwood et al 2018)
Fossil or faux pas? A 2016 study that interpreted rock anomalies as the oldest evidence of life on our planet got it wrong, say researchers behind a new analysis of some of the same rock. The deformities aren’t relics of early microbial life, says the team, but rather a snapshot of geological forces shaping and reshaping our world.