The 6,000-year-old tombs have been used as telescopes

The British astronomers presented on Thursday the evidence of ancient telescopes in Portugal. It was 6,000-year-old tombs, which’ve been used as an instrument for elementary observation of stars movements. In fact, there were simple apertures (tunnels and doorways) inside the tombs. 

At the National Astronomy Meeting this week, the astronomers were shown the ancient prototype of a telescope. The 6,000-year-old tombs found in Portugal have been used as telescopes, which served to prehistoric people as an instrument for observing the stars.

The complex system of doorways tunnels is the oldest known astronomical observatories, say astronomers and archaeologists. It is hard to believe, but our ancestors and their built narrow entrances of so-called passage graves can increase the visibility of specific stars to the human eye.