Is There Life On Mars?

[6EQUJ5]

We have little choice in the matter of inhabiting anywhere else in our solar system.
Starting from the closest planet to the sun and going outwards, Mercury and Venus are both far too hot for us to ever inhabit.
We occupy Earth. Mars is too cold but not to such a degree that it will be for ever impossible to alter it. After all, we know how to warm a planet. We have been incrementally warming Earth for quite some time. We will do well to ever set foot on Jupiter, Saturn, Uranus and Neptune. They are all far too cold and are gas planets, consisting largely of hydrogen and helium. They each have a tiny solid core that we know almost nothing of but which is extremely hot.

Pluto is no longer categorised as a planet. This downgrading to dwarf planet took place in 2006. There are Pluto fans who do not like that so for them I include Pluto in this assessment. It is far too cold and far too small, only 17.8% of the Earth's mass. Anywhere beyond Pluto is totally out of the question. In fact, for the reasons given above, anywhere beyond Mars is almost certainly out of the question.

So in the solar system Mars seems to be the only prospect. It would be formidably difficult to make it suitable for us to live on. But that is an encouraging assessment. We cannot dismiss it as impossible to alter Mars. What is now formidably difficult may well become feasible by the end of this century. So let's incrementally work towards that prospect, beginning now.