earth

the earth spins arownd in 1 day. the earth go's arownd the sun in 1 year
 

venus

venus is a very hot planet. venus spins arownd very slow

mars

mars is a big peace of rock it has two moons deimos & fobos

Black Holes

black holes ar a very dangerous thing because they can suck you in. Its got so much gravity it can crush you down.