There are some people who believe that when a UFO takes off from a cornfield, it leaves behind a perfect circle of chopped corn stalks called a crop circle. It's fun to think that you can prove that aliens are visiting Earth, but why are they never seen arriving or leaving the spot? Some people believe that aliens have visited Earth many times in the past. Their proof, they believe, is the pyramids in Egypt and the Americas, the enormous drawings of animals in Peru, the huge figures on Easter Island, and the legendary continent of Atlantis. They try to convince other people that they were all created with the aid of extra terrestrials or aliens because no one else could have had the strength and intelligence to create these wonders.

If the people living so long ago were smart enough to predict eclipses and the movements of the planets and stars just from the records they kept, couldn't they have thought of a way to move the huge blocks of stone that made the pyramids? It may have been possible since the famous astronomer Archimedes was using pulleys and levers to raise heavy loads thousands of years ago. Have you ever watched someone loading a truck? They usually lay boards with one end on the ground and the other end lying in the truck, then they roll their loads upward, instead of lifting them. How long do you suppose people have been doing this? For years we have looked to the skies and space to answer all sorts of unknown things. Maybe aliens were invented to explain all of these mysteries like the mythical gods were so many years ago.

Try This

Unidentified Flying Objects

You can make your own UFOs by placing two foil pie pans with their rims together, then taping them. You can also try using paper bowls or plates. Which object flies the best? Can you think of any other things that might fly better? How about making a rocket on a string by running a cord through a paper towel tube?