What is known about planet where evidence of alien life has been found?
Scientists have found evidence of alien life in the atmosphere of 'K2-18b', a super-Earth exoplanet located 124 light-years from Earth that orbits an M-type star. It takes 32.9 days to complete one orbit of its star. K2-18b is 8.6 times as massive as Earth and has a diametre 2.6 times as large as Earth. It was first discovered in 2015.