The Mystery of the First Replicators
One of the most profound puzzles in origin-of-life research is how the first self-replicating molecules arose. Replication is fundamental for evolution and the development of complexity, yet this leap from chemistry to biology remains elusive. Scientists have made progress by engineering artificial replicators in the lab, demonstrating that simple molecules can, under the right conditions, copy themselves. However, recreating this process in a way that mirrors the earliest Earth remains a major scientific challenge.