NASA captures Mars winter wonderland of megadunes and cube-shaped snowflakes
Daily MailMAR 19 2023
As ice has already been found at the poles of Mars, the discovery that water was once within these immensely dry craters proves the planet was undoubtedly a much wetter place a long time ago. Water facilitates life on Earth, and if more of it is found in these crater basins, Mars might one day make for a habitable environment for human beings.
Though it's a possibility, the idea of finding life on Mars, let alone the ability of humans to live there one day, is a big stretch. Even if vast amounts of water and life are found in the planet's subsurface areas, it's because they are also shielded from the Sun's dangerous radiation — something surfaces above can't be protected from due to Mars' thin atmosphere.