What is Lucens?
{{Infobox Swiss town | subject_name = Lucens | municipality_name = Lucens | municipality_type = municipality | image_photo = Lucens village chateau.jpg | image_caption = Lucens village | imagepath_flag = CHE Lucens Flag.svg | imagepath_coa = CHE Lucens COA.svg | map = Karte Gemeinde Lucens.png | languages = French | canton = Vaud | iso-code-region = CH-VD | district = [[Broye-Vully (district)|Broye-Vully]] |coordinates = {{coord|46|42|N|6|51|E|display=inline,title}} | postal_code = 1522 | municipality_code = 5675 | area = 6.28 | elevation = 498|elevation_description= | population = 2157|populationof = December 2003 | popofyear = 2003 | website = www.lucens.ch | mayor = |mayor_asof=|mayor_party= | mayor_title = Syndic |list_of_mayors = | places = | demonym = | neighboring_municipalities= [[Bussy-sur-Moudon]], [[Cremin]], [[Curtilles]], [[Forel-sur-Lucens]], [[Moudon]], [[Oulens-sur-Lucens]], [[Seigneux]], [[Surpierre]] (FR), [[Villeneuve, Fribourg|Villeneuve]] (FR) | twintowns = }} '''Lucens''' is a [[municipality]] in [[Broye-Vully (district)|Broye-Vully]] in the [[Cantons of Switzerland|canton]] of [[Vaud]] in [[Switzerland]]. == History == Lucens was first mentioned in 964 as ''in villa Losingus''. It was formerly known by the [[German language|German]] name ''Losingen''. In 1969, the [[Lucens reactor]], an underground [[nuclear reactor]] started operation in Lucens. It soon had a serious accident, resulting in massive [[radioactive contamination]] of the underground site, which was then sealed. The nearby municipality [[Oulens-sur-Lucens]] became part of Lucens municipality on 1 July 2011.<ref name=Fusion>[http://www.bfs.admin.ch/bfs/portal/de/index/infothek/nomenklaturen/blank/blank/gem_liste/03.html Amtliches Gemeindeverzeichnis der Schweiz] published by the Swiss Federal Statistical Office {{in lang|de}} accessed 17 February 2011</ref> On 1 January 2017, the former municipalities of Brenles, [[Chesalles-sur-Moudon]], [[Cremin]], [[Forel-