Phil Williams
Professor Phil Williams was a space scientist who studied the solar wind and solar effects on the earth's atmosphere. He was a leading member of Plaid Cymru, and with Dafydd Wigley, wrote the party's Economic Plan for Wales. In 2001 he was voted Welsh Politician of the Year. Professor Williams died in 2003.
https://www.theguardian.com/news/2003/jun/13/guardianobituaries.highereducation