Tag Archives: exoplanet oceans

“Mini-Neptune” exoplanets may be covered in radioactive oceans

Nuka-Nepta New research suggests that astronomers may have been completely wrong about a class of exoplanets they call “mini-Neptunes.” These worlds, thought to be smaller versions, just 2.4 Earth radii, of gas giants like Neptune, may actually be rocky exoplanets covered by thick, deeply irradiated oceans, according to research by …

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