What is our closest star?

What is the name of Zeus 3 sisters? How was the sun formed so it can give off heat and light? What did the first person on the moon say? What day of the week did July 23 1966 fall on? What is the biggest blue diamond in circulation? Is orbit a noun? What greek root mean star? Who named the main planets in the solar system? How did Galieo apply the scientific methods to his study of falling objects? Why is there only a small percentage of water vapour in the atmosphere today? What happens if you accidentally look at a solar eclipse"? Will people ever inhabit the plant mars? When was the moon is down written? Who invented the rocket stove? What is used to propel a rocket? Who are cronus's kids? Why are terrestrial planets smaller and denser? What is a tough transparent cover of the eye? At the end of its period the main sequence of a very heavy star is? What happens to the ground underneath a glacier as it moves and melts?