“Toxic or Habitable?” –The Hidden Lakes at Mars South Pole

    One of the myriad of unsolved mysteries about the Red Planet is why why ancient Mars had liquid water. Early in the planet’s history, Mars only received a third of the sunlight of present-day Earth, which shouldn’t be enough heat to maintain water. But in past, ancient millennia, huge rivers flowed across the … Continue reading “Toxic or Habitable?” –The Hidden Lakes at Mars South Pole