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How to explore Tidal Heating 3D Explorer

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Open the Tidal Heating 3D Explorer, watch Io flexing hotspots flicker, then toggle the Europa cutaway to reveal its subsurface ocean.

  1. Open https://freetoolonline.com/space-3d/tidal-heating.html and wait for Io, Europa, and Ganymede to appear.
  2. Read the facts panel: Io volcano count, surface flex, heat flow, and the interior finding.
  3. Watch the orange hotspots flicker on Io as it flexes.
  4. Press the cutaway button to reveal the blue Europa ocean under its icy shell.
  5. Compare with Orbital Resonance 3D for the period-ratio mechanics, or Galilean Moons 3D for the four-moon overview.

Tidal heating key figures

Compare the tidal heating key figures: Io's active volcanoes, surface flexing, heat flow, and the Laplace resonance.
Tidal heating: Io's volcanoes, surface flex, heat flow, and the 1:2:4 resonance.
QuantityValue
Io active volcanoes~400 (NASA Juno)
Io surface flexup to ~100 m
Io heat flowat least 20x Earth
Laplace resonance (Io:Europa:Ganymede)1:2:4

Next: the when guide or vs alternatives. Open the Tidal Heating 3D Explorer.

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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