Earth 2.0: ESO researchers discover the most Earth-like exoplanet to date - 0-40 degrees temperature and possibly water-covered. People, start waving vigorously, if this is transmitted at the speed of light, the aliens will see it in 20 years.
Earth 2.0: ESO researchers discover the most Earth-like exoplanet to date - 0-40 degrees temperature and possibly water-covered. People, start waving vigorously, if this is transmitted at the speed of light, the aliens will see it in 20 years.