The internationally acclaimed artists Libenský and Brychtová pioneered, explored, developed, and defined glass as a medium for contemporary sculpture. The career in glass of this husband-and-wife team spanned more than 45 years. Their art explores ideas about light, color, space, and transparency. The small sculpture Prism in the Spheric Space exploits the illusionistic qualities of glass. It is formed of two half-spheres cut to accommodate a prism in the middle. The refraction causes the end of the prism to appear as if it flares out, like a comet’s tail.