At week's end space scientists were buzzing about fresh confirmation of year-old evidence that there is a dusting of polar ice on the moon--ice that could help a community of astronauts survive. Almost lost in the excitement was news from a far more distant and far wetter world. According to the crispest images yet from the Galileo Jupiter probe, there is more reason than ever to think that beneath the icy skin of the Jovian moon Europa there lies a warm, amniotic sea in which heat, moisture and organic chemicals may have already allowed life to take hold.
The new evidence...
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