The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the ... of the massive geological features using photos and elevation data captured by NASA’s ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

The body of a 20-year-old California man and a vehicle were recovered from below the South Rim at the Grand Canyon on Monday.

Some council delegates and community members are concerned that so few people had seen the terms of an agreement to ship the ...

That's good news for scientists and NASA, which is looking to land astronauts at the south pole on the near, Earth-facing ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

Arizona has hosted the Super Bowl several times. What year will the Super Bowl be in Arizona again? Here's when it could ...

Scientists used photos and data from Nasa’s Lunar Reconnaissance Orbiter to map the area and calculate the path of debris.

Navajo communities along the 174-mile stretch of the uranium haul route on Diné lands say the tribe and mining company are failing to share crucial safety info ...