Stanislav Libenský and Jaroslava Brychtová pioneered, explored, developed, and defined glass as a medium for sculpture. The career in glass of this husband and wife team spanned more than 45 years. Their art explores ideas about space, transparency, and volume, and it communicates emotion and energy through color and light. Libenský and Brychtová’s sculptures are cast in a technique called mold melting, in which chunks of glass are allowed to soften and melt into molds inside a large kiln. After the firing is complete, the sculpture is gradually cooled and then carefully cut, ground, and polished. This video was featured in the exhibition, Voices of Contemporary Glass: The Heineman Collection, on view at The Corning Museum of Glass, May 16, 2009– January 3, 2011.