"Ernetti called it the Chronovisor, and according to him it had been invented in the 1950s by a dedicated and secret cabal of twelve renowned scientists commissioned by the Vatican for the purpose of creating a device that would allow the world's greatest biblical mysteries to be observed and proven. Some of the names Ernetti dropped among those responsible for the machine’s creation were himself, the German-born American aerospace engineer, space architect, and eventual NASA rocket scientist Wernher von Braun, and the great physicist Enrico Fermi, who had won the Nobel Prize in physics in 1938 for proving new radioactive elements produced by neutron irradiation."
https://mysteriousuniverse.org/2021/05/the-strange-mystery-of-the-vaticans-secret-time-machine/
"Dubbed the Chronovisor, this oversized cupboard was equipped with antennas made from exotic alloys, cathode ray tubes, dials and levers. According to Father Ernetti, its users could capture and record specific locations, events and particularly important individuals from Earth’s history. Under the right conditions, it offered possible scenarios that were to occur in the near future. Ernetti said that he was not at liberty to discuss details regarding the Chronovisor. However, he unveiled that it worked by processing residual electromagnetic radiation left over by different processes. The priest used the device to witness several important events, the most notable of which was the crucifixion of Christ."
https://ufoholic.com/the-chronovisor-vaticans-device-used-to-peek-into-the-future-and-the-past/
"The Chronovisor first appeared in mainstream conspiracy circles in the 2002 book ‘The Vatican’s New Mystery’ (‘Le Nouveau Mystere du Vatican’) by Father Francois Brune, who is an expert of sorts on the intertwining of paranormal incidents and religion. However, an Italian newspaper article under the headline “A Machine That Photographs The Past Has Finally Been Invented” shows there was at least some public awareness of the claim as far back as 1972."
https://www.ufoinsight.com/conspiracy/historical/chronovisor-vaticans-time-seeing-device
Is the Catholic Church hiding a Time Machine? Story of the Chronovisor