mdsolar (1045926) writes with news that NASA's second attempt to launch a satellite to map carbon dioxide levels across the globe succeeded, and its instruments are operating properly. From the article: NASA's first spacecraft dedicated to studying Earth's atmospheric climate changing carbon dioxide levels and its carbon cycle has reached its final observing orbit and taken its first science measurements as the leader of the world's first constellation of Earth science satellites known as the International 'A-Train. The Orbiting Carbon Observatory-2 (OCO-2) is a research satellite tasked with collecting the first global measurements of atmospheric carbon dioxide (CO2) — the leading human-produced greenhouse gas and the principal human-produced driver of climate change. The 'first light' measurements were conducted on Aug. 6 as the observatory flew over central Papua New Guinea and confirmed the health of the science instrument.
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