“It’s kind of some mental gymnastics that you have to do to imagine the planet as a real place,” says Dr. Kreidberg, who wasn’t involved in either study. “It’s hard sometimes to really grasp the reality of these planets that are so foreign compared to anything that we’ve seen in the solar system, that are so far away that we can’t actually see them.” 

https://www.csmonitor.com/Science/2019/0913/Astronomers-find-water-vapor-on-distant-temperate-planet