Mars has.lots of water enough to cover the surface to a depth of a kilometer of all extracted and melted.
ars is the only other body in the solar system with water and CO2 that humans could step on. Mars has enough atmosphere that humans don’t need full pressure suits with 100% O2 in the masks and compression fabric suits and thermal suits humans can walk and not boil our blood. We need about 1 psi of pressure on the skin to not boil fluids at body temps. A sufficiently tight compression garment can keep in a couple.of psi and with pure O2 we could walk around like that. No need for bulky full bubble suits. The SpaceX launch suits are essentially this tech already. Only the helmets have air the rest of the suit is compressed down on the skin of the wearer.
What is the current thinking on feasibility of terraforming Mars to have breathable atmosphere, livable temp and growing plants for oxygen?