There's a Winter Solstice livestream from Newgrange this morning to mark the shortest day of the year.
It goes live at twenty to nine - when it hopes to capture the illumination from inside the ancient passage tomb.
Clare Tuffy's director of the monument in County Meath, where the rising sun aligns with the entrance, to illuminate historic carvings.
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Meanwhile, Astronomer Anna Gammon-Ross explains why we will also experience the longest night later.
