My hometown finally got a true dark sky

In the dream I'm standing on the back porch of my childhood house, but the streetlights are gone and the Milky Way is so bright it casts shadows of the lilac bush. A small comet I've never seen in waking life hangs low over the garage roof, tail like a torn ribbon. I keep telling everyone to look up and they keep saying they don't see anything, and I wake up feeling robbed.