The meandering poles of Jupiter's moon Europa etched tell-tale scars across the satellite's icy surface, a new study finds. Europa's ice-heavy poles shifted almost 90 degrees, from near the current equator to their current north-south...

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The meandering poles of Jupiter's moon Europa etched tell-tale scars across the satellite's icy surface, a new study...
Arc-shaped troughs (black and white arrows) extend 100s of kilometers on the surface of Jupiter's moon Europa. These enigmatic features are likely fractures resulting from a shift in Europa's spin axis. Vertical scale bar (right) is 100 km. Credit:...