Nasa missions-messenger

Goals

Aocomplishments;on 18 march 2011 (utc) messenger became the first spacecraft to orbit mercury. messenger was designed to map the surfuce composition study the magnetic field and interior structure of our solar system's smallest and innermost planet--mercury.
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Nicolaus Copernicus

He made several discoveries which contradicted both religous and scientific teachings and backed up copernicus theory of a sun-centred.
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