Chriet Titulaer (May 9, 1943 – April 23, 2017), born in Hout-Blerick, Venlo, Limburg province, was a Dutch astronomer, television presenter and popular science and technology writer. He lived in Houten, Utrecht province.
Titulaer went to high school at the St.-Thomascollege in Venlo (now the Valuas College). He studied maths and physics at the University of Utrecht with a major in astronomy. At the university he joined the student association CS Veritas. During his studies he founded (together with Ton Smit) the Venlo chapter of the Nederlandse Vereniging voor Weer- en Sterrenkunde (Dutch association for meteorology and astronomy) on April 18, 1965 (since 1990 known as the Weer- en Sterrenkundige Vereniging "Jean Delsing").
The next year he organized the exposition Mens en het Heelal (Man and the Universe), then the largest meteorology, astronomy and space travel exposition ever held in the …Read more on Wikipedia