The Cosmic Radiation Satellite (CORSA, also CORSA-A) was a Japanese
space telescope
A space telescope (also known as space observatory) is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory, OAO ...
. It was supposed to be Japan's first X-ray astronomy satellite but was lost due to failure of its
Mu-3 launch vehicle
A launch vehicle is typically a rocket-powered vehicle designed to carry a payload (a crewed spacecraft or satellites) from Earth's surface or lower atmosphere to outer space. The most common form is the ballistic missile-shaped multistage ...
on 4 Feb 1976. A replacement satellite
Hakucho
Hakucho (also known as CORSA-b before launch; CORSA stands for Cosmic Radiation Satellite) was Japan's first X-ray astronomy satellite, developed by the Institute of Space and Aeronautical Science (then a division of the University of Tokyo
...
(CORSA-b) was later launched.
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{{Japanese space program
Space telescopes