The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

It's certain that recently discovered asteroid 2024 YR4 will swing close to Earth in 2032. The chances of an impact remain ...

Electronic signs now tell truck drivers how many truck parking spaces are available at Interstate 10 rest areas in western ...

On the Reddit thread r/arizona, users share things about the Grand Canyon state that they find underrated, from food and ...

New research shows that meteoroid impacts on Mars generate seismic signals that travel much deeper than previously thought, ...

Scientists say America is no longer the only place with a Grand Canyon as NASA spots two enormous chasms carved into the ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

The image below, taken by the European Space Agency's Trace Gas Orbiter (which arrived at Mars in 2016), shows one of the ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

Meteor Crater in Arizona is believed to have been created by a 50m metallic meteorite impact around 50,000 years ago. Credit: ...

Shutterstock The Grand Canyon State is a Certified Stargazing Paradise Arizona has some of the darkest, clearest skies in the ...