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Life, Unbounded

Exoplanet Size: It’s Elementary

(Credit NASA/Ames/JPL-Caltech)

Since quite early in the history of the discovery of planets around other stars it’s been apparent that the likelihood of certain types of planets around a star is related to the abundance of heavy elements in that system. Specifically, astronomers can study the spectrum of light from a star and deduce the mix of [...]

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