- Astronomers use Earth’s history as guide to spot vegetation on new worlds. By looking at Earth’s full natural history and evolution, astronomers may have found a template for vegetation fingerprints – borrowing from epochs of changing flora – to determine the age of habitable exoplanets. https://www.astrobio.net/also-in-news/astronomers-use-earths-history-as-guide-to-spot-vegetation-on-new-worlds/ 3 comments space