We don't have a choice.
We have to become a space-faring species if we want to survive.
The sun is expanding and will consume the earth, but before that the 'habitable zone' where surface water exists, will have moved further out from Earth.
We may kill our planet much sooner than being consumed by the sun. We have to become a space-faring species if we want to survive.
The sun is expanding and will consume the earth, but before that the 'habitable zone' where surface water exists, will have moved further out from Earth.
5 billion years is almost an infinite number for the human race.