Cracking The Ice on Europa – Alyssa Rhoden (SETI Talks)

Europa’s surface records a complex history of geologic activity including fracture systems driven by tidal stress, which varies daily as Europa executes its eccentric orbit. Obliquity, physical libration, and non-synchronous rotation would also contribute to the pattern of tidal stress on Europa. Hence, we can use observed fracture systems to constrain these rotational parameters. Using cycloids and strike-slip faults, Dr. Rhoden has been able to probe Europa’s rotation state and uncover the first geologic
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