Earth's natural satellite

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Your new ahaThe Moon

The Moon rotates once for each orbit, so roughly the same hemisphere faces Earth. Source: Moon ↗

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02Largest moon in the solar systemRECALL
Ganymede
It orbits Jupiter
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03Moon with a thick nitrogen atmosphereRECALL
Titan
Saturn's largest moon
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04This icy Galilean moon, the second outward from Jupiter, is a major target in the search for a subsurface ocean.RECALL
Europa
Europa's likely ocean lies beneath an icy crust. Other moons also have subsurface oceans, so that clue alone does not identify it.
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