#Wonders of the solar system
Since time immemorial,men and women have been interested in the stars and the wonders if the sky.
It was in the 15th century that new knowledge of the universe come to light.Am #astronomer from #paland named Copernicus proposed the idea that the #sun is the center of the #solar system.
Then in 1609,an Italian scientist named #Galileo Galilei proved that Copernicus was right.He used his newly-invented #telescope to study the #solar system.
The #solar system is composed of the #star, the sun, the planets and the moon.The #nine planets are #Mercury,Venus,Earth,Mars, Jupiter,Saturn,Uranus, Neptune and Pluto.
Beyond #pluto you came to the outer reachesof the #solarsystem.Tgere lie millions of #coments.So what is a comment?A #comet is like a giant snowball several kilometers wide and loosely packed with lumps of rock and ice
