5 Earth-like worlds may lurk in the outer reaches of the sol

The young sun may have captured several Mars- or Mercury-size exoplanets that now orbit in the outer reaches of the solar system, but identifying them will be extremely challenging.

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Chile , Milky Way , Magallanesy Antáica Chilena , Verac Rubin , Amir Siraj , Astrophysics At Princeton University , Webb Space Telescope , Journal Letters , Princeton University , Interstellar Object Studies , Kuiper Belt ,