Essay
Evidence for Life: Imagine that recent advances in technology have allowed the discovery of several very low mass (much less than the mass of Jupiter)planets around nearby, Sun- like stars. Assume all that is known about these planets is their mass, their size, and the characteristics of their orbits (i.e., semi- major axis and eccentricity). You are asked to speculate on whether or not life (similar to that on Earth)might exist on these planets. How would you answer this question? You are then asked what new observations we might make to help settle this question. How would you respond?
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