An exoplanet orbiting a dwarf star 124 light-years from Earth made headlines around the world in April 2025. Researchers at the University of Cambridge reported that planet K2-18b could be a marine ...

Sub-Neptune planets, often billed as possible "water worlds," may be more desert than deep sea, according to a new study. For years, scientists thought these planets, which are larger than Earth but ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have discovered a new ocean world outside the solar system that orbits extremely close to its parent star. This means ...

When NASA launched the Kepler spacecraft in 2009, it opened a new era of exoplanet discovery, revealing thousands of planets orbiting other stars. Among these were mini-Neptunes, or sub-Neptunes, ...

We've found more than 5,500 exoplanets so far. Dozens of them are in the habitable zones of their parent stars, where, at least in theory, they could host an ocean. But we've never definitively found ...

An exoplanet orbiting a dwarf star 124 light-years from Earth made headlines around the world in April 2025. Researchers at the University of Cambridge reported that planet K2-18b could be a marine ...

You’ve heard about water worlds, exoplanets that could be completely covered in oceans or have deep layers of water beneath thick atmospheres. But what about steam world exoplanets? These are ...

Are Hycean exoplanets, which are a combination of hydrogen and a potential liquid water ocean, less common than previously hypothesized? This is what a recent study published in The Astrophysical ...

Artistic illustration of the internal structure of a lava planet in a cold state, showing a day‑side magma ocean overlain by a mineral atmosphere. The arrows indicate the direction of heat transport ...

Add Yahoo as a preferred source to see more of our stories on Google. Sub-Neptune planets, often billed as possible "water worlds," may be more desert than deep sea, according to a new study. For ...

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