#Portugese #Stonehenge: 6K YO #SevenStoneAntas may have been first telescope!

Scientists say 6,000-year-old tombs could have been first ‘telescopes’ ~ DNA

Ancient megalithic tombs – such as those at the 6,000-year-old Seven-Stone Antas in Portugal – may have been the first astronomical tools used to watch the skies, millennia before telescopes were invented, scientists say.

Astronomers are exploring what they believe to be the first astronomical observing tool, potentially used by prehistoric humans 6,000 years ago.

They suggest that the long, narrow entrance passages to ancient stone, or ‘megalithic’, tombs may have enhanced what early human cultures could see in the night sky, an effect that could have been interpreted as the ancestors granting special power to the initiated.

The team’s idea is to investigate how a simple aperture, for example, an opening or doorway, affects the observation of slightly fainter stars.

They focus this study on passage graves, which are a type of megalithic tomb composed of a chamber of large interlocking stones and a long narrow entrance.

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These spaces are thought to have been sacred, and the sites may have been used for rites of passage, where the initiate would spend the night inside the tomb, with no natural light apart from that shining down the narrow entrance lined with the remains of the tribe’s ancestors.

These structures could therefore have been the first astronomical tools to support the watching of the skies.

“It is quite a surprise that no one has thoroughly investigated how for example the colour of the night sky impacts on what can be seen with the naked eye,” said Kieran Simcox, a student at Nottingham Trent University in the UK.

The project targets how the human eye, without the aid of any telescopic device, can see stars given sky brightness and colour.

The team intends to apply these ideas to the case of passage graves, such as the 6,000-year-old Seven-Stone Antas in central Portugal.

“The orientations of the tombs may be in alignment with Aldebaran, the brightest star in the constellation of Taurus.

To accurately time the first appearance of this star in the season, it is vital to be able to detect stars during twilight,” said Fabio Silva, of the University of Wales Trinity Saint David in the UK.

The first sighting in the year of a star after its long absence from the night sky might have been used as a seasonal marker, and could indicate for example the start of a migration to summer grazing grounds.

The timing of this could have been seen as secret knowledge or foresight, only obtained after a night spent in contact with the ancestors in the depths of a passage grave, since the star may not have been observable from outside.

However, the team suggests it could actually have been the result of the ability of the human eye to spot stars in such twilight conditions, given the small entrance passages of the tombs.

6,000-year-old Seven-Stone Antas in Portugal – may have been the first astronomical tools used to watch the skies.(Getty Images – Representational Image)

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