Cornell astronomers have reached into nature’s color palette from early Earth to create a cosmic “cheat sheet” for looking at distant worlds. By correlating tints and hues, researchers aim to understand where discovered exoplanets may reasonably fall along their own evolutionary spectrum.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/astronomerse.jpg)
Source:
https://phys.org/news/2019-07-astronomers-cosmic-sheet-life.html