"There is a certain purpose for these stone spheres ... this is most likely a souvenir given by guests from the Universe, who want to send our mankind some kind of message."
- Carl Sagan
At the time Carl Sagan gave his opinion, only a few hundred stone spheres had been found in Costa Rica. But today, thousands of the perfectly formed spheres have been discovered all over the world - Bosnia, Australia, Germany, China - with more locations added to the list every year.
The first spheres were discovered in the 1930s. They were considered to be local curiosities - just minor mysteries without any global significance. Some archeologists even thought they were pottery based, and believed they were only a few thousand years old. But now that huge numbers of them have been discovered all over the planet, the spheres are finally being treated as a vast global phenomenon by scientists.
They vary in size from a few centimeters to colossal 3-meter giants. They exhibit some usual properties. For instance, they appear to be denser than regular stone. They are perfectly spherical and interfere with magnets. Thousands have been found, but experts say most remain buried - for now. They believe they were placed on earth over 200,000 years ago. Ominously, many seemed to have moved several hundred miles from their initial discovery site, with no explanation, or human intervention. Perhaps they are already being activated, or are readying and positioning themselves for reasons unknown.
Because they are found in clusters and along energy lines of the earth, many suspect the stones are energy conduits. Perhaps they are, but for who? Because of their unusual properties, some say they where placed on earth to stabilize our climate or to preserve our magnetic field. Others are researching the vast numbers of spheres in the oceans, which taken together they have enough mass to impact Earth’s gravity. But until they are activated, we will not know their true purpose.