Detection of the first celestial X-rays
The first rocket flight which successfully detected a cosmic
source of X-ray
emission was launched in 1962 by a group at American Science and Engineering
(AS&E). The team of scientists on this project included
Riccardo Giacconi, Herb Gursky, Frank Paolin and Bruno Rossi. This rocket
flight detected a very bright source they named "Scorpius X-1"
("Sco X-1" for short), because it was the first X-ray source found in
the constellation Scorpius.