Two immense canyons on the moon's far side that rival Earth's Grand Canyon were produced by a cataclysmic collision nearly ...

An Arizona lawmaker is urging the Trump administration to reconsider federal land protections near the Grand Canyon to allow for mining.

That's good news for NASA, which is looking to land astronauts at the south pole on the near, Earth-facing side later this ...

Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that ...

Researches have determined that ejecta from an ancient asteroid. strike carved out the grand canyons (Vallis Schrödinger and ...

The vast valleys of Vallis Schrödinger and Vallis Planck demonstrate the incredible forces that shaped the face of the Moon.