By Ted Thornhill Updated: 06:47 EST, 12 December 2011 A greater percentage of Mars is habitable than Earth, say scientists who have made an overall study of temperature and pressure conditions of the Red Planet. Researchers from the Australian National University say that three per cent of Mars could sustain life, while just one per cent of Earth’s volume contains life – from the core to upper atmosphere. However, the team say that most Earth-like organisms would need to retreat underground to survive on Mars. Water find: Thanks to huge amounts of ice and warmer conditions underground, life could thrive on Mars
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Three per cent of Mars's volume could sustain life, compared to one per cent on Earth
With a diameter of 4,222 miles, it’s around half the size of the @placeholder.