How big can a super-Earth reach while remaining “habitable”?

Of the thousands of exoplanets discovered so far, the most common are “super-Earths” – worlds larger than Earth but smaller than Neptune. Some of these planets are even within the habitable zones of their parent stars, which means conditions could be right for hosting liquid water on their surfaces.

But could these giant, rocky exoplanets actually sustain the conditions for life? Or is life limited to smaller planets like ours? Ultimately, only future observations will give us a conclusive answer. But until then, the question gives us a perfect opportunity to explore the limits of our understanding of where life might find a home.

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