The Moon has been listed as a vulnerable site- the first time a location beyond Earth has been categorised as such. The World Monument Fund, an international nonprofit, highlights 25 sites at risk ...
The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power of the Colorado River. Close to the ...
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side.