How a huge project tried to map the skies without computers

How a huge project tried to map the skies without computers

Enlarge / Photograph showing the emission nebula, Eta Carina (formerly Eta Argus) taken using the Astrographic Telescope at the Royal Observatory, Cape of Good Hope, South Africa. At the center of this complex nebula is a massive but unstable star that will one day explode in spectacular fashion. SSPL/Getty Images Recently, the European Space Agency …

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