official news from : https://bit.ly/2QkyIbY NASA-supported scientists have resurrected an enzyme first used by organisms on Earth 3.2-billion years ago and, in the process, have validated a chemical biosignature in rocks that is used to understand ancient life on Earth. The research provides a new understanding of what Earth’s biosphere was like early in ourContinue reading “Resurrecting Ancient Enzymes in NASA’s Search for Life Beyond Earth”