Extraterrestrial life exists.
On Earth, there are many species with differences in genetics.
Elsewhere, on a planet related to Earth, there is likely to be extraterrestrial life.
If life exists on Earth, why can it not on other planets?
Extraterrestrial life exists.
On Earth, there are many species with differences in genetics.
Elsewhere, on a planet related to Earth, there is likely to be extraterrestrial life.
If life exists on Earth, why can it not on other planets?