Tethys has been approached by several space probes including Pioneer 11 (1979), Voyager 1 (1980), Voyager 2 (1981), and multiple times by Cassini since 2004.
Tetis foi explorada por varias sondas espaciais, incluíndo a Pioneer 11 (1979), a Voyager 1 (1980), a Voyager 2 (1981), e a Cassini dende 2004.