Stargazer, or OAO-2, was NASA’s first successful space telescope, launched in 1968 for ultraviolet astronomy and operating until 1973 as a direct ancestor of later major observatories.
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Stargazer, or OAO-2, was NASA’s first successful space telescope, launched in 1968 for ultraviolet astronomy and operating until 1973 as a direct ancestor of later major observatories.