Planeta Marte nu a fost tot timpul roşie…

It’s been about 12,000 years since Earth’s glaciers last retreated, having finished carving out the Great Lakes, depositing boulders in strange places, and generally giving the northern hemisphere a makeover. But that does not mean Earth’s most recent ice age is over. We are currently in an interglacial, a warmer period sits between the longer glacial periods of an ice age, which itself lasts a few million years.

Mars has ice ages, too, but its temperature swings are more extreme. According to scientists, the Red Planet is emerging from an ice age of its own, following several rounds of climate change. Radar evidence says this retreat began about 370,000 years ago.


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