Can you defend a claim about an unfamiliar world?

Can you compare two worlds, keep measurement separate from inference, and propose the next observation that would reduce uncertainty?

Complete the journey with three evidence dossiers. Select the most defensible conclusion, expose its boundary, and identify what should be measured next.

One unfamiliar world is examined by a spacecraft using spectral sensing, surface mapping, and gravity-field measurements. — Vastward artistic reconstruction. One world is shown with several measurement layers to represent an evidence dossier, not one real observing scene.

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