Why is life possible only on earth?

Life originated on planet Earth, because there is everything that living organisms need: water, comfortable temperature, air, atmospheric pressure, nature, gravity, solar activity (air temperature).

It used to be thought that only one planet was possible for life, but scientists conducted research. Disputes arose: “Is there life on the moon?” Then NASA scientists found a planet where conditions are suitable for living. This planet was named Kepler-186f. Deep investigations have just begun, they require large financial resources, so a full life is possible only on planet Earth.