The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

At this time, it isn't clear what caused the gas leak, but the trails have been reopened to the public and deemed safe for recreation. Grand Canyon National Park is in the midst of a $208-million ...

This almighty gorge is a true wonder of the natural world and has been dubbed the “ Greek Grand Canyon”. This is due to its ...