The incoming object created an impact basin and sent streams of rocks hurtling like missiles, NASA said. Within minutes, two ...

The debris landed like missiles, digging out two canyons comparable in size to Arizona's Grand Canyon in barely 10 ... at the Moon’s surface, where an ancient asteroid strike carved out a ...

The debris landed like missiles, digging out two canyons comparable in size to Arizona's Grand Canyon in barely 10 minutes. The latter, by comparison, took millions of years to form.

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

This image provided by NASA shows a view from orbit looking obliquely across the surface of the moon, where an ancient asteroid ... in size to Arizona’s Grand Canyon in barely 10 minutes.

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the ... as well as studying the ancient lunar material they helped bring to the surface.