Rosa Barba’s ‘Language Infinity Sphere,’ a form created from old letterpress blocks now on view at Luhring Augustine’s Tribeca space, speaks with its circular form to the ongoing output of these blocks over the years. Other text-related work in the show includes handwritten words on a filmstrip that rotates around a lightbox cube and a 35mm film depicting images and text from the Library of Congress’ massive campus, the largest media archive in the world. Language appears in unexpected forms in this show, even as marks on the landscape in a film showing disposal sites for radioactive material in the western U.S. (On view through May 21st).