Ever wonder why mountains are often snowcapped or have a halo of clouds encircling their peaks, while their foothills and valleys are dry and clear? Orographic rain shadows are low-precipitation areas ...

Research by astronomers at the Dublin Institute of Advanced Studies suggests that shadows hold the key to how giant star-forming structures like the famous “Pillars of Creation” take shape. The ...

Snow shadows under trees created a fascinating patchwork of green and white on the frosted landscape at Arlington National Cemetery on Saturday morning. Snow shadows most commonly form during weaker ...

During the recent total solar eclipse in the US, I overlapped my hands, using the gaps between my fingers to form “pinholes”. Just before the start of totality, someone noticed that the shadows formed ...