Greenhouse gases could indicate extraterrestrial life, if we ever find it
Back to list of articles A new study suggests that one way to detect extraterrestrial life is to look for signs of terraforming, a hypothetical method of making a planet habitable. The TRAPPIST-1 exoplanet system. The exoplanets are Earth-sized and terrestrial. Credit: NASA/JPL-Caltech In a new study published in The astrophysical journal, Astronomers are proposing