See the darkest places in the U.S. here that can transform your nighttime experience into something truly magical.

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic ...

Mesa Verde National Park in southwestern Colorado protects and preserves the cultural heritage of 26 tribes of Ancestral ...

Grand Canyon Skywalk is ranked #17 out of 20 things to do in Grand Canyon National Park. See pictures and our review of Grand Canyon Skywalk.

While recent research shows the night sky is getting brighter every year across North America, the Big Bend area in Texas has ...

Based on the new model, the first of these white dwarf explosions isn’t due for at least 10 1100 years. That’s a 1 followed by 1,100 zeros—a number so big that we don’t have a name for it ...

Inspiration Point is ranked #1 out of 15 things to do in Bryce Canyon National Park. See pictures and our review of Inspiration Point.

Meier said the National Snow and Ice Data Center has relied on the military satellites for data on sea ice coverage since 1987, but will adapt its systems to use similar microwave data from a ...