Utah is the heart of a booming night-sky tourism industry

• There are 29 in the state — the highest concentration in the world, per the state tourism office, and 155 listed nationally.

The big picture: The trend could bring travelers — and their dollars — to more remote locales with better night skies.

Zoom in: All five of Utah's national parks are certified Dark Sky places, as are many state parks, national monuments and towns like Moab, Helper and Torrey.

Between the lines: A lot of the best stargazing destinations don't advertise themselves. Utah has plenty of remote country roads where you can simply pull over, step outside and look up.

How it works: You can use Dark Site Finder's online map to help you plan some noctourism of your own.

• Try an app like Sky Guide to ID the planets and stars you're seeing. Just keep the brightness low to avoid ruining your night vision.

• Use flashlights or headlamps with red LEDs, for the same reason.

The intrigue: With the sun now in "solar maximum," it's also prime time for aurora-hunting in northern-latitude locales like Alaska, Iceland and the Nordic countries.

Yes, but: Some astronomers and stargazers are worried that the ever-increasing amount of satellites and space junk in low Earth orbit could mar our views of the night sky — perhaps forever.