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Cyril Byrne has photographed the rising solstice Sun illuminating the inside of a 5000-year-old megalithic tomb in Newgrange, in County Meath, Ireland. The tomb is aligned with the solstice Sun which shines down an 18-meter tunnel.[Irish Times/APOD]

The 2020 winter solstice – summer solstice in the southern hemisphere – occurs on December 21st at 10.02 UTC. This is when North Pole is tilted farthest away from the Sun and the South Pole has its maximum tilt towards the Sun.

Solstice at Newgrange