File:Robert simmon-Blue marble.jpg: Revision history

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February 12, 2024

September 24, 2023

  • curprev 22:0022:00, September 24, 2023‎ NoLongerOnTheBall talk contribs‎ 763 bytes +763‎ The last time anyone took a photograph from above low Earth orbit that showed an entire hemisphere (one side of a globe) was in 1972 during Apollo 17. NASA’s Earth Observing System (EOS) satellites were designed to give a check-up of Earth’s health. By 2002, we finally had enough data to make a snap shot of the entire Earth. So we did. The hard part was creating a flat map of the Earth’s surface with four months’ of satellite data. Reto Stockli, now at the Swiss Federal Office of Meteorology...
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