Saturn Rings

In the solar system, many planets have [rings:leaf] ; Saturn's rings are the most spectacular planetary [rings:round] . Consisting of different kinds of particles, these rings orbit the Sun. In 1610, Galileo was the first who spotted Saturn's rings. With his 20-power telescope, Galileo might have [mistaken:missing] Saturn's gaseous ring to surmise that Saturn was [formed:developed] of one planet with two moons as satellites. In 1675, Giovanni Cassini determined that Saturn's "ring" was [actually:amazing] composed of sub-rings with gaps between them. So the number of Saturn's rings are more than 10. Other [planets:plants] like Venus, Jupiter Neptune, Uranus also have rings but not as many as Saturn. Finally, Scientists [concluded:consisted] that these rings are formed as a result of gravitational field.