Jupiter:
* Great Red Spot: Detailed images of the storm that has raged for centuries.
* Moons: Discovered active volcanoes on Io, evidence of a subsurface ocean on Europa, and a complex geology on Ganymede.
Saturn:
* Rings: Unprecedented views of the rings, revealing their intricate structure and composition.
* Moons: Discovered new moons and revealed the complex geology of Titan, with its methane lakes and rivers.
Uranus and Neptune:
* Planetary structure: Revealed the unique axial tilt of Uranus and the presence of a strong magnetic field on Neptune.
* Moons: Discovered new moons around both planets.
Beyond the solar system:
* Interstellar space: Voyager 1 entered interstellar space in 2012, becoming the first human-made object to do so. It continues to send back data about the interstellar medium.
* Heliosheath: Voyager 1 and 2 both passed through the heliosheath, the outermost boundary of the Sun's influence.
Other discoveries:
* Solar wind: Measured the solar wind's speed and composition.
* Cosmic rays: Provided data on cosmic rays, high-energy particles from outer space.
* Magnetic fields: Studied the magnetic fields of the planets visited.
* Planetary atmospheres: Analyzed the atmospheres of the planets visited.
The Voyagers' "Golden Records":
* They carry a "Golden Record" with images, sounds, and messages from Earth, intended for any extraterrestrial intelligence that may find them.
The Voyager missions have significantly advanced our understanding of the solar system and have provided valuable insights into the interstellar medium.
