actually, no, it is too far away from the sun as it is now, maybe it was in the warm zone at one point but it isn't big enough to have a magnetic field so the surface is always gonna be devoid of life, and any life on mars is going to be under the ground below the soil that absorbs/reflects the x/gamma rays that destroy DNA
it is not big enough. venus is not big enough either... there is a size limitation and it is very likely that this relates to the necessity of a certain amount of ferromagnetic materials accumulating into the mass (either from outside or from a possible hypothetical internal high pressure slow time region for the random pops of matter into space that happen everywhere)
it's my view that celestial bodies have a life cycle, and that you start with small ones, with clouds, and as they accumulate mass, they accumulate matter until once they get solid and big enough, the core can form the superconductive/hyperdense space where matter can bubble upwards, plus the inbound accumulation of dust and meteorites falling on the planet adding to the mass on the surface (we know for sure about this one)
and thus, these planets are not big enough to have a magnetic field yet, and will not be able to become liveable planets like ours until they do, if they don't get smashed into something else or broken up or merge with another body later, PLUS having to be at the right distance to be in that sweet spot between freezing and boiling point of water
i recommend you read about Immanuel Velikovsky, he made some interesting discoveries and hypotheses about the idea that our planet became fertile because of a massive collision a long time ago that made it tip to that critical mass i talked about, and the magnetic field started
the magnetic field is everything
without that field, life is going to be scrambled by ionising radiation, and even when this field exists, as the galactic magnetic field spiral rotates, the large majority of life on the planet will be extinguished, for our galaxy at our current position on the edge that's 12800 years or so