discoverer

n. one who discovers, one who finds

Corona was the name of a series of US military reconnaissance satellites operated under a CIA program with substantial assistance from the US Air Force, used for photographic surveillance of the Soviet Union, China and other areas from June 1959 until May 1972 . The project name is sometimes given as CORONA, but it is a codeword, not an acronym.
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Noun
1. someone who is the first to think of or make something
(synonym) inventor, artificer
(hypernym) creator
(hyponym) patentee
(derivation) discover, find
2. someone who is the first to observe something
(synonym) finder, spotter
(hypernym) perceiver, observer, beholder
(derivation) detect, observe, find, discover, notice

(n.)
One who discovers; one who first comes to the knowledge of something; one who discovers an unknown country, or a new principle, truth, or fact.
  

(n.)
A scout; an explorer.
  

n.
پردہ اٹھانے والا, يابندہ, پرکاشي, بھيد کھولنے والا, دريافت کنندہ, معلوم کرنے والا, پتا لگانے والا