The galaxy is full of ‘water world’ exoplanets where life could evolve

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یکشنبه 28 مرداد 1397 ساعت 9:20
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New Scientist
Planets with atmospheres of steam, oceans of liquid water and cores of rock surrounded by solid ice may be abundant around distant stars. An analysis of the 4000 or so known exoplanets estimates that around 1400 are water-rich worlds, potentially raising the stakes that some may harbour life.
Although a few individual water world exoplanets have been identified , the new data suggests they may be abundant.
“Life could develop in certain near-surface layers on these water worlds, if the pressures, temperatures and chemical conditions are appropriate,” says Li Zeng of Harvard University …
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