On this day in 1909 – May 5th – Irish astronomer Mervyn Archdall Ellison was born in Fethard-on-Sea, County Wexford.

He was a world authority on solar physics and the effect of solar flares on the Earth. Ellison began his research when working as a school teacher, and continued it at the Royal Observatory, Edinburgh. He was also a member of the International Astronomical Union (IAU) and a Fellow of the Royal Society of Edinburgh.

Mona Evans
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