Sion, Switzerland contrast, the rate of violations of immigration, visa and work permit laws was 0.9 per thousand residents, which is only 18.4% of the rate for the entire country. People associated with Sion include: Sion is twinned with: Sion, Switzerland Sion (; ; ; ) is a Swiss town, a municipality, and the capital of the canton of Valais and of the district of Sion. it had a population of (known as "Sédunois(e)"). On 17 January 1968, the former municipality of Bramois merged into the municipality of Sion. On 1 January 2013, the former municipality of Salins merged into the municipality
Edward M. Sion also acts as a featured expert on Big Think, he has also provided commentary for Forbes. Sion has served sabbatical appointments at Arizona State University, Centre Nationale de la Recherche Scientifique, University of Toulouse and the Hubble Space Telescope Science Institute. Edward M. Sion Edward M Sion (born January 18, 1946) is an American astrophysicist who is Professor in the Department of Astrophysics and Planetary Science at Villanova University. He specializes on the structure and evolution of white dwarf stars and white dwarf stars in explosive binary star systems known as cataclysmic variables. Edward M. Sion is a US citizen