english: That's because Kepler-186f orbits a red star, and we're just speculating that perhaps the plants there, if there is vegetation that does photosynthesis, it has different pigments and looks red.
non_english: To je zbog toga što Kepler-186f kruži oko crvene zvezde, a mi samo nagađamo da su možda biljke tamo crvene, ako postoji vegetacija koja obavlja fotosintezu; ima drugačije pigmente i izgleda crveno.