Other than Venus, Mars is the planet closest to Earth, and the distance between Earth and Mars is not much further than that to Venus.
Mars is not only very close to Earth, but its environment is also quite good.
First of all, Mars itself is very similar to Earth, with planetary structures that are not much different, its diameter is about half that of Earth, and its rotation period is also similar to Earth's.
Among all the planets in the solar system, Mars is the most like Earth.
Such a similar environment makes Mars more suitable for human activity compared to other planets.
The temperature on Mars can reach minus dozens of degrees Celsius, which, although still quite harsh,
is much better compared to the high temperatures of over four hundred degrees on Venus.
Other planets in the solar system can randomly have high temperatures of several hundred degrees or cold temperatures below minus one hundred degrees.
