Austiniuliano t1_j24mik1 wrote on December 29, 2022 at 5:02 PM

Reply to comment by Rhondajeep in Earth was brought to life by ancient water-rich asteroids from the outer Solar System by marketrent

There is a cool animated explanation and that is one of the steps. https://youtu.be/HpcTJW4ur54

Short answer is we would need to to Teriform mars but one downside is that a disease could wipe out a whole species and throw off the balance. So it would be doable but difficult