How Galileo worked around its antenna failure

Galileo was travelling to Jupiter when its high-gain antenna failed to deploy fully on 11 April 1991^[1]. For the rest of the mission, it used its low-gain antenna instead; data-compression software and other strategies let it send more data through that antenna than had originally been possible^[2]. Why it mattered: these measures kept data returning, but they did not restore the high-gain antenna, and Siddiqi says its failure prevented data transmission during the Gaspra flyby^[3][4].

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