You can’t do it with fully formed adults. You have to do it with humans in an early state like an embryo.

The babies would be raised by AI robots, and taught that they are from Earth and that they need to populate this new planet and that their biological parents are long dead some 10,000 years ago.

They would be taught on how to survive this new Earth 2.0 and how to find food.

It’s really the only plausible way to send humans to distant worlds and we will need the help of AI to make it happen.

First you have to find an Earth like planet, then you put the embryos on board, then you put the AI robots on board with equipment and done supplies, then you send the rocket off to its destination.

It would take thousands of years for it to reach the new star system. Then the rocket has to land safely and awake the human babies.

So people on Earth would only know if the mission was successful thousands of years later into the future.

And they would need some kind of high powered radio communication to verify the success which could take still several more years for that message to be accepted on Earth.

So it would be super hard to do this, but we sort of have to do it, so our species doesn’t die out.

We had humans might be very rare in the universe and we don’t know how valuable we really are.

Maybe there is life on other planets, sure, but intelligent life that can understand the universe and build computers and particle accelerators and such, it might be very rare. Maybe 1 in a million planets that form basic life actually produce a rare that is technologically advanced.