Explanation:

The Cassini–Huygens mission, commonly called Cassini, was a collaboration between 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.

Messenger was a NASA robotic spacecraft that orbited the planet Mercury between 2011 and 2015. The probe was launched aboard a Delta II rocket in August 2004 to study Mercury's chemical composition, geology, and magnetic field.

The Voyager program is an American scientific program that employs two robotic probes, Voyager 1 and Voyager 2, to study the outer Solar System. The probes were launched in 1977 to take advantage of a favorable alignment of Jupiter, Saturn, Uranus and Neptune.