Most Habitable Earth-Like Planets May Be Waterworlds

Most Habitable Earth-Like Planets May Be Waterworlds:

A new study published in The Monthly Notices of the Royal Astronomical Society suggests that most habitable planets are wet. Like, extremely wet. Using computer models, astronomer Fergus Simpson from the Institute of Cosmos Science at the University of Barcelona found that habitable exoplanets, at least simulated ones, tend to be overrun by water, in most cases accounting for 90 percent or more of the total surface area.

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“Larger planets are thought to be more prone to flooding for two reasons,” Simpson told Gizmodo. “One is that if they have the same composition (percentage of water by mass) then their oceans are deeper. The second is that their higher surface gravity makes it harder to have such large surface perturbations [dynamic topological features].”