The answer to the disappearance of water on Mars already exists
mars is one of the most earth-like worlds in the solar system. the planet has a 24.5-hour day, polar ice caps expand / contract seasonally, and especially a variety of surfaceWhy are microorganisms living 'so tough' on Earth but still hard to survive on Mars
a new study conducted by nasa shows that microorganisms from earth traveling to mars through spacecraft are struggling to survive in the red planet.