The Solar System is the gravitationally bound system of the Sunlight and also the things that orbit it, either straight or indirectly. Of the items that orbit the Sunlight directly, the biggest are the eight planets, with the rest being smaller sized objects, the dwarf planets and tiny Solar System bodies. Of the items that orbit the Sunlight indirectly-- the all-natural satellites-- two are bigger than the tiniest world, Mercury.The Solar System formed 4.6 billion years back from the gravitational collapse of a large interstellar molecular cloud. The substantial bulk of the system s mass is in the Sun, with the majority of the remaining mass contained in Jupiter. The 4 smaller sized internal system planets, Mercury, Venus, Planet and Mars, are earthbound earths, being largely composed of rock as well as steel. The four external system earths are huge worlds, being significantly a lot more huge than the terrestrials. Both biggest planets, Jupiter and also Saturn, are gas giants, being