Author(s): toutatis

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The Submillimeter Wave Astronomy Satellite (SWAS), also known as Explorer 74, is a NASA spacecraft designed to study the chemical composition, energy balance and structure of interstellar clouds, and investigate the processes of stellar and planetary formation in far-infrared and microwave light. It was launched in 1998 and was put into hibernation in 2005. As of 2023, SWAS remains in low Earth orbit on stand-by mode

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