Richard Serra at David Zwirner Gallery

Eight blocks of forged steel weighing 35 tons each are a solid totemic presence in David Zwirner Gallery’s ground floor 20th Street space. As the title, ‘Equal,’ conveys, each is the same but stacked to suggest different sizes and astounding weight. (Through July 24th).

Richard Serra, Equal, forged weatherproof steel, eight identical blocks, each: 60 x 66 x 72 inches, 2015.

Aiko Hachisuka at Eleven Rivington

It’s not unusual to see second hand clothing as an art material in New York galleries, but no one quite turns it into the unique sculptural and painting surface that LA-based Japanese artist Aiko Hachisuka does. Here, in her installation on the Lower East Side at Eleven Rivington, columns covered in printed fabrics make dramatics statements from close and far. (Through May 17th).

Aiko Hachisuka, installation view at Eleven Rivington, April 2015.

Michele Oka Doner at Marlborough Gallery

Known for her deep engagement with the natural world through her art, New York/Florida artist Michele Oka Doner creates hybrid plant/animal/human figures in her impressive solo show at Marlborough Gallery’s 57th Street location. Here, a gilded cast-bronze figure has the textured surface of weathered wood while a tree-like wax-covered figure at rear stands in contrapposto. (Through May 16th).

Michele Oka Doner, Interior Life, gilded cast bronze, 58 x 14 x 8 ½ inches, 2014.

Pamela Joseph at Francis M. Naumann Fine Art

Pamela Joseph’s censored paintings of iconic artworks, including the rendition of Matisse’s Blue Nude pictured here, look like humorously overzealous attempts to stop objectification of female bodies. In fact, Joseph is recreating the distortions imposed by Iranian censors on art books in Iran. (At Francis M. Naumann Fine Art on 57t Street through May 22nd).

Pamela Joseph, Censored Blue Nude by Matisse, oil on linen, 30 x 48 inches, 2014.

Tim Hawkinson in ‘Eureka’ at Pace Gallery

Art and science perform a beautiful dance in Tim Hawkinson’s ‘Gimbled Klein Basket,’ a rotating bamboo lattice depicting a Klein bottle, a single sided object with no boundaries invented by 19th century mathematician Felix Klein. (At Pace Gallery’s 510 West 25th Street location through June 27th).

Tim Hawkinson, Gimbled Klein Basket, bamboo, motor, pulley, drive belt, 9’ 2” x 11’ 8” x 4’ 6,” 2007.