In a little more than 30 years, we went from knowing only of the planets in our star system to discovering over 5,000 distant worlds spread across the cosmos. So far, none have looked quite like Earth. If an Earth-like planet was orbiting another star, however, it may look different than our precious pale blue dot. In…
https://gizmodo.com/color-purple-detect-alien-microbial-life-1851414095