Which major astronomical organization launched the first carbon-neutral observatory that runs entirely on renewable energy sources and uses sustainable materials in its construction?

Modern astronomy has been making significant strides toward sustainability. From solar-powered observatories to eco-friendly telescope designs, the field is embracing green practices while continuing to explore the cosmos. Test your knowledge about how astronomical organizations are implementing sustainable practices in their operations, equipment, and facilities. Are you as knowledgeable about astronomy's environmental initiatives as you are about the stars?

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European Southern Observatory (ESO) with their ALMA Carbon-Zero Initiative in Chile
National Aeronautics and Space Administration (NASA) with their Green Telescope Project in Arizona
Japan Aerospace Exploration Agency (JAXA) with their Subaru Eco-Observatory in Hawaii
Russian Astrophysical Observatory (RAO) with their Pulkovo Green Initiative in St. Petersburg