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The language of exoplanet ranking metrics needs to change

We have found many Earth-sized worlds but we have no way of determining if their surfaces are Earth-like. This makes it impossible to quantitatively compare habitability, and pretending we can risks damaging the field.

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Correspondence to Elizabeth Tasker.

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Tasker, E., Tan, J., Heng, K. et al. The language of exoplanet ranking metrics needs to change. Nat Astron 1, 0042 (2017).

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