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Although they are a great archaeological find, the origin of the stone spheres remains a mystery to mankind.

To this day, no one knows for sure what happened to the first English settlement in America.

For the first time in 2,000 years, tourists will have access to the ancient city of Hegra in Saudi Arabia.

But first, the company promises to store eggs and sperm in orbit and perform the first extraterrestrial artificial insemination.

The site is so impressive that it became known as the "Pompeii" of America.

For more than a century, scientists around the world have tried to explain the phenomenon of the red-colored waterfall in Antarctica.

This is a real danger that we can face if we are not properly protected against space objects that are on a collision course with Earth.

The mystery of the 2,000-year-old mechanism has finally been solved.