Amazing Discovery On Mars
HUFFINGTONPOST.COM - Think Mars today is a hostile place? It was worse 600,000 years ago, according to new research that suggests the planet had a dustier, stormier atmosphere.
"It was an unpleasant place to hang out," said lead researcher Roger Phillips of the Southwest Research Institute. He said Mars' climate was probably a lot like the American Dust Bowl of the 1930s – but a lot worse.
The evidence comes from the discovery of a huge underground reservoir of dry ice, or frozen carbon dioxide, at its south pole – much more than scientists realized. They suspect some of that store of carbon dioxide was once in Mars' atmosphere, making it denser.
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