Tag Archives: asteroid belt

Who Discovered The Planets On Our Solar System?

The planets can be classified to two parts the first is the 4 inner planets that are composed from rocks and metals and they are Mercury, Venus, Earth and Mars. The other part is the 4 outer planets which are different in the composition, where Jupiter and Saturn consist of hydrogen and helium, while Uranus … Continue reading

Asteroids And Comets

Comets: Not too long ago, many people thought that comets were a sign that something terrible was about to happen. People didn’t understand about how objects in the sky moved, so the sight of a comet must have been very scary.Now we know that comets are small, irregularly shaped and icy bodies composed of a … Continue reading