PinPoint #753
Clues
Titan
Triton
Phobos
Io
Ganymede (seen By Galileo)
The Answer
Moons In Our Solar System
Deep Dive & Strategy
PinPoint #753: Titan, Triton, Phobos, Io, Ganymede
Five clues, one hidden category. Titan starts broad, Triton and Phobos tighten the net, and the last two names seal it.