Updated Wikipedia reads, "The Cassini–Huygens mission was a collaboration between the United States' NASA, the European Space Agency, and the Italian Space Agency to send a probe to study the planet Saturn and its system, including its rings and natural satellites."
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"Sept. 15, 2017 (5:45 a.m. PDT): Cassini has completed its mission at Saturn. As predicted, the spacecraft lost contact with Earth at 4:55 a.m. PDT (7:55 a.m. EDT)." - Source