Sometimes things in life are so grand that your mind cannot comprehend their magnitude—such things like the scope of the Grand Canyon, the distance between Earth and its moon or the Sun, the size of the galaxy, how northern lights dance in the sky, or even the smoothness of a baby’s skin. “The grand canyon challenges (defeats) your ability to comprehend the scales involved” (“The Grand Canyon Rules, Pt 1,” Science Minus Details, March 16, 2010,