Space/Science — HabitableZone

Space/Science » in reply to your simple explanation is actually the most complex

re: Extraordinary claims require extraordinary evidence

Which of the following statements is more "extraordinary" and why?:

A) There is NO LIFE on Mars
B) There IS life on Mars

What IS life?
How and Why did lifeless matter become "alive" on this planet and what would prevent such processes from happening on another planet?

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