It was O’Kelly who produced the first scientific dates for Newgrange and rediscovered the 'roof box,' which guides the light into the chamber. On December 21, 1967, O'Kelly was the first person ...

Newgrange, a Neolithic passage tomb that is ... Above the entrance is an opening called a roof box, through which a beam of light penetrates the roof box and travels up the length of the passage ...

At Newgrange, during the sunrise on the mornings ... through a specially designed opening above the entrance called a roof-box, gradually illuminating the narrow passage. As the sun ascends ...

He confirmed local lore that the rising midwinter sun passed through the roof box above the entrance to Newgrange, flooding the burial chamber within with light. Somehow, and nobody knows how ...

The Newgrange monument was built over 5,000 years ... The sunlight enters through the ‘roof box,’ a small opening above the entrance, and will illuminate the tomb for about 17 minutes, but ...

direct sunlight can enter the Newgrange monument to illuminate the chamber, not through the doorway, but through the specially contrived small opening above the entrance known as the ‘roof box’.

17 minutes of direct sunlight can enter the Newgrange monument through the specially contrived small opening above its entrance known as the 'roof box' and illuminate the central chamber of the ...