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Astronomy is an interesting science to many people because it is stuffed with loads of fun astronomy facts. Everything from the size and temperature of our own star, the Sun, to the make-up of distant planets has been recorded. All of this information can be retold to entertain and enlighten your friends.

The Sun is a great source of astronomy fun facts. Our own star that supplies us with all our heat and light is between 91 and 94.5 million miles from Earth. It's not that nobody knows the distance for certain. It's that the Earth revolves around the Sun in an elliptical, uneven, orbit, so the distance varies depending on where the Earth is situated in that orbit.

The Sun is only of average size for a star, yet it's size is another terrific source of astronomy fun facts. As average as it is, it accounts for about 98% of all the matter in our solar system. Even with the huge planet of Jupiter on our side, we're still a tiny 2% of non Sun stuff.

It would take the diameter of about 100 Earths to measure across this average Sun. The solar winds produced by the Sun extends to about 50 times the distance from the Earth to the Sun. In other words, those solar winds go out about 50 AU's, with an AU being the distance from the Earth to the sun. That's quite amazing, isn't it?.

How about astronomy fun facts that don't have anything to do with the Sun then? How about the Moon? It's the only non-Earth object that man has walked upon so far. And one man actually travelled to the Moon but never left it. Dr. Eugene Shoemaker loved the Moon but was rejected as an astronaut. After his death, he was cremated and his ashes were scattered over the Moon by the Lunar Prospector spacecraft in 1999.

There are many more astronomical fun facts about the Moon. It's where what might become the oldest footprint known to man. Neil Armstrong's giant leap for mankind left a footprint or shoe print in the Moon's dust that will probably still be there in 15 million years time.

Many people, in fact about 13% of those asked in 1988, still believed the Moon is made of cheese. And finally the suits worn by the Moon-walking astronauts weighed 180 pounds on Earth but only 30 pounds on the Moon, because of the reduced gravity on the Moon. Talk about an instant diet, eh?

Astronomy fun facts aren't limited to our close astronomical neighbours. Looking at stars is like looking into the past. Some of the stars we see today in the night sky are so far away that their light takes a million years to reach Earth. Some of the stars you see may really be images of stars a million years old that aren't even there in the present. There are over 1 x 10 ^22 stars in the universe. That's a 1 followed by 22 zeros. The number is really quite staggering.

There are thousands of astronomy fun facts that we could go on about. But, unfortunately, this article can not be that long. So, please, just get out there at night, look upwards and learn more about astronomy for yourself.