A decently dark site in a rural area has a sky background of about 21 mag/arcsec 2. In the Rocky Mountains in Colorado I’ve been to sites a bit darker than this, and it’s truly spectacular.

SEQUIM — International Dark Sky Week, billed as “a worldwide celebration of the dark and natural night” by Dark Sky International, will be celebrated today through April 28. During the past century, ...

To celebrate International Dark Sky Week 2025, we've put together a list of 10 night sky objects visible over the coming days that showcase the majesty of the post-sunset realm.

Here’s how it works. An eight-hour long exposure of the night sky captured from the Dark Sky Alqueva Reserve in Portugal by astrophotographer Miguel Claro. (Image credit: Miguel Claro) ...

On the first night of the new moon, I gaze at the sky from a campsite in Northern California. The night is so black that when I hold out my hand, I can’t see my fingertips. It’s not just an ...

Website: Mesa Verde National Park Description: According to the National Park Service, the park was certified “as the world's 100th International Dark Sky Park” in 2021.