The Hirshhorn Museum and Sculpture Garden in celebration of the museum’s 40th anniversary, “Gravity’s Edge,” running Feb. 7 through June 15, offers an expanded view of Color Field painting. Spanning the period 1959 to 1978 and featuring works by canonical East Coast Color Field painters such as Helen Frankenthaler, Morris Louis and Kenneth Noland, the exhibition also includes paintings and works on paper by California-based artist Sam Francis and self-described “abstract phenomenist” Paul Jenkins, as well as sculptures by Lynda Benglis and Anne Truitt. The exhibition’s title refers to its two main themes: the exploration of the force of gravity as a determining factor in artistic production and the increasing attention paid to the edge as a compelling aspect of the structure and perception of an artwork.