The Voyager 1 and 2 spacecraft flew by Saturn in 1980 & 1981 and were able to pay only fleeting attention to Titan, the second largest moon in the solar system and the only moon with an appreciable atmosphere.
The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately billion years ago. of the system’s mass is in the Sun.
A graphic showing all 8 planets in our solar system, Mercury through to Neptune, to scale where one pixel = km. Scales were worked out with this very useful solar system scale calculator. Find out more about the planets on the Planet Facts page.