I want to invite you to take a breath and imagine the night sky. Not the sky you might have seen last night with a handful of stars struggling through the clouds or through the glow of the city. I mean, a sky so full of celestial objects that it feels alive.A sky that our ancestors looked up to in wonder. A sky that guided their journeys, told them stories, and helped them to understand their place in the universe. Hold that image for a moment.Now I want you to imagine the same sky again, but this time imag ...

[applause] When you look at the sky at night, what do you see. If you're among the 20% of Americans who can still see the magnificent Milky Way, you're in for a spectacular sight. However, if you're part of the 80% living with light pollution, you may only see a few stars or maybe nothing at all.A full onethird of humanity can no longer see the Milky Way with a naked eye. Plus contributes to a changing climate by wasting energy and disrupting natural systems that regulate our planet's biosphere. Dark skies, ...