SPACEX just launched a lot of human DNA to the International Space Station.

The Crew-4 mission blasted off on April 27 and part of the cargo was a biobank containing DNA from 500 different species.

One of those species was humans and there are now over 2,000 different DNA samples from lots of different people in space.

A company called LifeShip is behind the DNA collection.

It hopes to one day create an off-world genetic human seed bank on the Moon.

The idea is similar to the Global Seed Vault we have on Earth.

The Global Seed Vault has the capacity to hold 4.5million seed samples.

If there happened to be a global catastrophe and a lot of life on Earth was destroyed, the Global Seed Vault could help humans grow plants again or help a species come back from the brink of extinction.

LifeShip aims to do a similar thing, but with humans and other animals.

Its website states: "At LifeShip, we believe that humanity has an important part to play in continuing the cycle of life in the Universe and expanding life outwards from our planet.