Curatorial Text:
Humberto Moro                   
                  Penumbra: Dia Art Foundation

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Penumbra takes its title from the zone of partial shadow that exists between illumination and darkness—a threshold condition in which light is neither fully present nor fully withdrawn. A word and a concept that is nearly identical in over a dozen languages, penumbra names a space of perceptual uncertainty, hesitation, and suspension, where form loosens, edges blur and meaning resists completion. Within this conceptual framework, a selection of works from Dia’s collection by Walter De Maria, Félix González-Torres, Tehching Hsieh, Robert Irwin, Agnes Martin, Richard Serra, James Turrell, and Andy Warhol reflect key aspects of Dia’s history and mission, foregrounding conceptual and minimalist practices of the 1960s and 1970s and tracing their ongoing resonance into the present.

The works assembled in this exhibition approach light not as a vehicle of revelation or transcendence, but as a contingent force—one that is shaped, obstructed, absorbed, or diffused by bodies, materials, and spatial conditions. On view from March 27 to August 3, 2026, Penumbra marks the second collaboration between Dia Art Foundation and PROA, following the presentation of works by Dan Flavin in 1998, and continues a shared commitment to sustained, site-sensitive encounters with art.

Across postwar and contemporary practice, light has frequently functioned as a metaphor for clarity, immateriality, and access. Penumbra instead attends to light’s limits: to moments when illumination is interrupted, when visibility is slowed or destabilized, and when form emerges not through disclosure but through attenuation. In this context, light and shadow operate as reciprocal, active forces rather than oppositional terms, shaping perception through withholding as much as through presence.

Andy Warhol’s silkscreened-paintings Shadows (1978–79) anchors this inquiry through repetition and seriality, presenting shadow as both subject and surface. Visually removed from any discernible source photograph, the shadows appear as autonomous images—simultaneously graphic and indeterminate—oscillating between abstraction and representation. Their rhythmic sequence and chromatic variation deny a stable point of view, situating the viewer within a field of visual fluctuation rather than narrative coherence, which is further reinforced by Warhol’s concept to allow the paintings to be hung in any sequence.

James Turrell and Robert Irwin further complicate perception by working directly with light as a spatial and temporal medium. Turrell’s installations generate environments in which light appears tangible. Catso Blue (1967/87), produced as part of the artist’s Cross Corner Projections series, collapses distinctions between surface and volume and demands viewers to suspend conventional depth cues. Irwin’s investigations into conditions of “light and unlight”— Untitled (1965-67), Blue Jay (2018), and Pacific Jazz (2010), similarly engage states of reduced visibility, activating peripheral vision and heightening awareness of duration and bodily presence. In both practices, perception unfolds gradually, contingent upon time, movement, and attention.

Agnes Martin’s acrylic on canvas paintings from the Innocent Love series introduce a quieter, more introspective register of penumbra. Her finely calibrated grids and subtle tonal modulations operate at the edge of visibility, where structure approaches dissolution and repetition becomes meditative. Martin’s work demands sustained, disciplined looking, proposing an ethics of attention grounded in restraint and sensitivity rather than immediacy or spectacle.

Material weight and gravitational force enter the exhibition through works by Walter De Maria, Richard Serra, and John Chamberlain. De Maria’s Hardcore (1969) translates endurance, sound, and minimal action into a cinematic experience that confronts the viewer with time as both physical and opaque. Serra’s torque ellipse maquettes (1994-1998) register shadow as an effect of mass and curvature, where form asserts itself through pressure, rotation, and resistance. These maquettes, manually produced by Serra, are studies for and accompany the monumental steel sculptures that the artist realized at an architectural scale on view at Dia Beacon since 2003. Chamberlain’s compressed steel sculptures absorb and fracture light, producing dense, chromatic shadows that oscillate between violence and lyricism, collapse and exuberance. The artist’s gesture of compressing car parts is formally translated to his mineral-coated translucent resin sculptures, which refract and scatter a multi-hued spectrum of light. 

The exhibition’s engagement with penumbra extends beyond material and perceptual concerns to include duration, exposure, and withdrawal. Tehching Hsieh’s Exposure (1973/2016), presented on film, documents a performance in which photographic paper is subjected to prolonged exposure, foregrounding time, process, and the irreversible effects of light. Félix González-Torres’s Untitled (Loverboy) (1989), an instruction piece realized as a translucent blue curtain installed over the institution’s windows in which it’s installed, subtly filters incoming light, transforming architecture into an instrument of attenuation and proposing opacity as both a visual and ethical condition.

Taken together, the works in Penumbra articulate a shared commitment to what remains unresolved—visually, spatially, and conceptually. Rather than framing shadow as a deficiency, the exhibition proposes penumbra as a productive state: one in which perception is sharpened through indeterminacy and meaning emerges through restraint. In an era increasingly shaped by demands for transparency, immediacy, and total visibility, Penumbra insists on the value of partial light, delayed perception, and the enduring presence of shadow.

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Interview with Adriana Rosenberg
 

by Proa’s Press Department

What does it mean for Proa to open its exhibition calendar with a show from Dia Art Foundation, and what place does it occupy within the 2026 program?

Our admiration for Dia Art Foundation goes back many years. From its beginnings, its work presenting a collection of works in which the viewer plays an active role in constructing the artistic experience created a strong affinity with Proa’s mission.

Our dialogue began when Michael Govan, then director of Dia Chelsea, curated the Dan Flavin exhibition at Proa, which was presented for the first time in Argentina. From that moment on, we maintained a continuous relationship of exchange and collaboration.

Opening our calendar with a selection of works from Dia is therefore a very meaningful gesture: it acknowledges the long-standing relationship between both institutions and allows us to present to local audiences a group of artists who are fundamental for understanding the transformations of contemporary art.

Considering Dia’s vast collection, how was the group of works and artists that will be presented in Proa’s galleries selected?

The initial premise was to select artists who had not been previously presented or widely seen in depth in our country. At Proa we always try, whenever possible, to organize exhibitions that have a historical dimension because they represent first presentations.

With the exception of Andy Warhol, whose work is already widely known, the group of artists brought together here is truly a privilege for Argentine audiences.

On this basis, curator Humberto Moro, together with Dia’s curatorial team, organized an exhibition that brings together artists and works in which light functions as a central element of the artistic experience.

The title of the exhibition introduces the notion of “penumbra.” How does this concept relate to the works presented?

The concept of penumbra, chosen by the curator as the overarching idea of the exhibition, refers to a zone of perception located between clarity and diffusion. It invites visitors to experience a visual and sensory journey that unfolds within this threshold.

Works by artists such as James Turrell, Robert Irwin, or Andy Warhol himself, with his Shadows series, present proposals in which light and shadow become fundamental materials.

In other works, light does not appear directly, yet the perceptual experience they propose equally refers to this idea of transition and visual ambiguity. The exhibition thus invites visitors to inhabit a space of introspective and sensory contemplation.

What is the historical importance of these works within contemporary art, and what concrete contributions did they make to its transformation since the 1960s?

Many of the works presented were commissioned, which is already a distinctive characteristic of Dia’s collection. This mode of production allowed artists to develop works conceived specifically for particular spaces and contexts.

The selection brings together pieces that marked important milestones in the history of contemporary art. Some are even being publicly presented for the first time despite being part of the collection.

These proposals emerged in the context of the profound artistic transformations of the 1960s and contributed to redefining fundamental notions such as contemplation, space, and time within aesthetic experience.

Artists such as Robert Irwin, James Turrell, and Dan Flavin shifted the focus from the art object toward experience and perception. The works are no longer limited to being observed; they exist in space to be walked through, perceived, and experienced by the viewer.

This shift also implied a transformation in the ways art is produced and circulated. Many of these works require long development periods, are conceived for specific contexts, and in many cases take the form of installations of a permanent nature.

What points of connection exist between Dia and Proa in terms of mission, scale of projects, and relationships with artists?

Following the Dan Flavin exhibition presented at Proa by Michael Govan, other projects emerged, such as the invitation to Sol LeWitt, who created a series of wall drawings that covered all the walls of our institution.

It was an extraordinary project, both because of its working methodology and because of the impact it had on the artists and assistants who participated in its realization. It was also remarkable for the ephemeral nature of the experience: the murals were conceived for that moment and were later destroyed.

This type of project reflects a deep affinity between both institutions in the way they work with artists and conceive the public’s experience.

How does this exhibition fit within Proa’s 30th anniversary program?

From its beginnings, Proa has sought to present in Buenos Aires some of the most relevant artistic movements of the twentieth century, working with artists and works of international significance.

The dialogue with Dia began almost in the early years of our foundation and has remained a constant line of interest and experimentation. Throughout our history we have organized exhibitions dedicated to minimalism, conceptual art, and other fundamental movements of contemporary art, both internationally and in relation to Argentine and Latin American artists.

In this sense, the exhibition naturally integrates into Proa’s history and its affinity with these artistic practices, which propose new ways of perceiving and inhabiting the world.

What impact do you hope this exhibition will have on the local artistic scene and on the dialogue between Argentina and the international circuit?

Proa’s exhibitions usually receive a very strong response, even when they may be challenging for audiences. We believe that our public programs—lectures, seminars, and educational activities—help expand the understanding of these works and enrich the content we offer to visitors.

In this case, the exhibition will be accompanied by a solid catalogue organized in sections dedicated to each artist. As is customary in our publications, it will include critical texts, statements by the artists themselves, and documentation of the works installed in our galleries.

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