If Earth were an exoplanet, JWST would know there's an intelligent civilization here - Phys.org
phys.orgSubmitted by physorg8953 in science
If we're going to look for life on other worlds, why not start with the one planet we know has life? Earth's atmosphere is rich with oxygen and molecules such as methane, which strongly suggest the presence of life. It also has traces of molecules such as nit…