What's the diameter of Earth?
12,756 km
What's the diameter of the Moon?
3,475 km
What's the diameter of the Sun?
1.3927 million km
What's the diameter of the solar system?
30 trillion km = 3 light years
What's the diameter of the Milky Way?
105,700 light years
How far is the Moon?
384,400 km
How far is Mars?
225 million km
How far is the Sun?
147.46 million km
How far is Proxima Centauri?
about 4.3 light-years
How far is the Andromeda galaxy?
2.5 million light years
