the final frontier

What super Earths mean for finding life in the galaxy

by JoAnna Wendel
An image of the Super Earth captured by NASA.

Shutterstock

Our galaxy is full of planets orbiting countless stars, and scientists tentatively call some of them “Earth-like,” but what does that really mean?

“Super Earth” is a class of exoplanet in the size range between Earth and our solar system’s ice giants Neptune and Uranus.

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