it is a force called gravity.
The Sun's Gravity
A solar system.
Gravity causes objects, like planets, to orbit the Sun.
If the objects are in orbit around the sun then they are in the Solar System.
solar system
The orbit
The sun
Stay in orbit
The Solar System!!
The Solar System!!
Most of the mass of the solar system is in the sun. As a consequence all objects in the solar system orbit the sun.
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