Guidoni earned a doctorate in astrophysics from the University of RomeLa Sapienza in 1978 and worked in the Italian Space Agency as well as in the European Space Agency. One of his research projects was the Tethered Satellite System, which was part of the payload of the STS-46 mission. Guidoni trained as an alternate payload specialist for that mission and made his first spaceflight aboard the Space Shuttle ColumbiaSTS-75 in 1996, which included the second flight of the TSS system. In 2001, Guidoni participated in the Space Shuttle's STS-100 mission, being the first European on board International Space Station. On that flight, the Space Shuttle Endeavour carried the RaffaelloMulti-Purpose Logistics Module for its maiden flight as well as the Space Station Remote Manipulator System, the Canadian robotic arm used extensively to assemble the ISS.
ESA career
In September 2001, Guidoni was assigned to ESA's European Space Research and Technology Centre as crew support for the payloads to be developed for the Columbus Laboratory. Columbus and its payloads are the European contribution to the scientific research performed on board the International Space Station. He retired from active astronaut status in June 2004.
In 2007 was the speaker of the radio program entitled “From the Sputnik to the Shuttle”, in which he retraced the main steps of the Space Era. In 2009, he presented another cycle of the same series where he narrated the epic history of the Apollo lunar missions. Starting from this program, in 2011, was published the book “From the Earth to the Moon”. Guidoni is involved in popularizing science and organizes events related to space. He has written articles and books including books for children such as "Martino on Mars", "Astrolibro" and the most recent published in 2019: "Voglio la LUNA" and "Guida per Giovani Astronauti".
Honors
On 15 April 1996, Guidoni was nominated Commendatore dell'Ordine al merito della Repubblica Italiana by Oscar Luigi Scalfaro, President of Italy. On 11 May 2001, he was appointed Grande Ufficiale dell'Ordine al merito della Repubblica Italiana by Carlo Azeglio Ciampi, President of Italy. For his first orbital flight in 1996, Guidoni also received the NASA Space Flight Medal A second Space Flight Medal was awarded after his second space flight of 2001. For his achievements in space, Guidoni received the NASA Exceptional Service Medal in 2002. The asteroid10605 Guidoni discovered by V. Giuliani e F. Manca on 1996.