Grand Canyon wildfire 'White Sage Fire' explodes overnight in Arizona as devastating black smoke blankets Midwest.

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...

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

Immortalised in dozens of blockbuster classics since its opening in 1926, Route 66 symbolises freedom, top-down adventure and ...

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

Find out the best stops along Route 66 on a Chicago to Los Angeles (or Los Angeles to Chicago) driving trip across the USA.

Grand Canyon National Park Superintendent Ed Keeble said the Grand Canyon Lodge, the only lodging at the North Rim, was ...

Visitors and staff at two national parks in the U.S. West have been evacuted because of wildfires. Officials at Black Canyon ...

The NPS recommends avoiding hiking the Grand Canyon's inner trails between 10 a.m. and 4 p.m., when temperatures are at their ...

A hiker has died on the South Kaibab Trail in the Grand Canyon National Park while attempting to reach the Colorado River.

A 67-year-old Texas man died Tuesday at the Grand Canyon after abandoning an attempt to hike down to the Colorado River. He ...

A 67-year-old Texas man died Tuesday at the Grand Canyon after abandoning an attempt to hike down to the Colorado River. He turned around and began ascending toward the rim before he was found, ...