Did you know that Mercury is the 8th largest planet in the solar system?
Did you know that Venus' core is made of iron and is 3000 km in radius?
Did you know that Earth is the densest major body in the solar system?
Did you know that the atmosphere on Mars is thin and is composed mostly of tiny amounts of remaining carbon dioxide and nitrogen , argon , oxygen and water?
Did you know that besides the sun, Jupiter is the king of the solar system and is bigger then all the other planets combined?
Did you know that Saturn has a bright ring?
Did you know that Uranus has a gaseous mix of ammonia, water, and methane around it's core?
Did you know that Neptune is only 3% smaller then Uranus?
Did you know that it took around 75 years to complete the discovery of Pluto?