If the team cannot find traces of life on K2-18b, they will continue their research with ten planets in the Goldilocks zone initially, and likely with others later on.
Even the absence of evidence for life could provide "important insights into the possibility of life on such planets."
This project is just one of many projects searching for signs of life in the universe.
Some of these projects explore planets within our Solar System, while others reach much farther into the depths of space.