A Los Angeles police sergeant was arrested in connection with a fatal hit-and-run crash early Saturday morning in Tustin.

About the canyons: The two canyons, called Vallis Schrödinger and Vallis Planck, are located on the far side of the moon, so they can only be seen from orbit — not from Earth. Each canyon is over 165 ...

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

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...