When the stars align, about eight months out of the year, the Milky Way and its 100 billion stars can be seen in some form.

Every year, the National Parks Service has volunteer opportunities at parks and federal lands across the country. Anyone can sign up to volunteer at a park near them throughout the course of the year.

I've visited all of the national parks in the US. Of the 63, I have a few favorites and letdowns. National parks like Gates of the Arctic, Big Bend, and Yosemite have blown me away. I didn't love ...

Several U.S. National Parks require reservations or permits, especially during peak season. These include Acadia, Arches, Glacier, Haleakalā, Rocky Mountain ...