它被称为“明亮的早期的太阳解决方案”，根据该方案，太阳将提供足够的热量，使地球和火星上的水变成液体。
It is called the bright-young-Sun solution, according to which the Sun would have provided enough heat for the water on Earth and Mars to be liquid.
位于纽约伊萨卡康奈尔大学天文学系教授认为，火星上的水不是被蒸发掉就是被冻结了。
The professor in the department of astronomy at Cornell University in Ithaca, New York, said the water probably evaporated or froze over.
陷入困境的漫游者在这些月份里供给了很是珍贵的证据，证实火星上的水远比原先认为的更为新近。
In those months, the trapped rover provided invaluable evidence for water on Mars that's far more recent than previously thought.
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