Which of these sustainability initiatives has been successfully implemented by a major astronomy equipment retailer?

Test your knowledge about how the astronomy industry is embracing sustainability initiatives! The astronomy sector faces unique environmental challenges, from light pollution to remote observatory impacts. Major astronomy retailers and organizations have been implementing innovative sustainability programs to reduce their ecological footprint while continuing to inspire stargazers worldwide. Can you identify which pioneering sustainability initiative is actually making waves in the astronomy retail space?

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The 'Dark Sky Packaging' program using biodegradable materials that dissolve when exposed to rainwater
The 'Telescope Recycling Initiative' that refurbishes and upgrades old telescopes with new technology to reduce e-waste
Solar-powered star charts that illuminate constellations using stored daylight energy
Observatory domes made from recycled plastic ocean waste that automatically regulate temperature