The Oort Cloud is too distant to be seen by current telescopes, but is thought to be a spherical distribution of small icy bodies at the outermost edge of the solar system. (sciencedaily.com)
Floating ice shelves mark the outermost edges of an ice sheet and line nearly half the Antarctic coastline. (sciencenews.org)
But because the conducting part of this material, at its outermost edge, measured only a few nanometers thin — thousands of times thinner than the X-ray beam's focus — it was difficult to positively identify all of the material's electronic properties. (sciencedaily.com)