Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
The data allowed the team to construct maps of the region, including the basin and its surroundings. The measurements showed these two canyons were similar in width and length to the Grand Canyon.
The gigantic cataclysm, which released energy 130 times more powerful than the detonation of the entire world’s atomic ...
Grand Staircase ... the local geology and archaeology. In addition to its bookstore, the visitor center features a topographical relief model of the monument, archaeology exhibits, and a geologic ...