Omizzolo was born July 16, 1956, in Foza, near Asiago, Italy. He completed his degree in Astronomy in 1982 at Padua University under the direction of prof. Cesare Barbieri with a thesis on Optical and X-rays properties of low-redshift quasars. He then worked in the field of optical variability of QSOs and of their spatial structures from 1982 to 1985.

Ordained in 1987, he is now a priest in the Diocese of Padua. Since 1997 he has been a member of the staff of the Vatican Observatory.

Research Interests: From 1997 he has been working on low resolution spectra of X-ray candidate quasars to determine the optical luminosity function of low-redshift QSOs. He is also involved in a project with prof. Piero Rafanelli (Padua University) aimimg to study spectroscopically Seyfert galaxies and isolated galaxies.

From 2000 he has been involved in an Italian national project to digitize the plates of the Osservatorio Astronomico di Asiago and of the Specola Vaticana. Some papers with data from the scanning project have been published and the results presented at various international meetings.

He is also interested in the study of the relationship between faith-philosophy-science.