JOSIAH MCELHENY: SOME PICTURES OF THE INFINITE

Cosmic questions addressed by this talented and internationally acclaimed Boston-born artist. Through Oct. 14. Institute of Contemporary Art. 617-478-3100, www.icaboston.com

MARSDEN HARTLEY: SOLILOQUY IN DOGTOWN

A selection of brilliant paintings made in Cape Ann in the
early 1930s by one of America’s greatest 20th century painters. Through Oct. 14. Cape Ann Museum, Gloucester. 978-283-0445, www.capeannmuseum.org

GARY WEBB: MR. JEANS

Sculptures that play fast and loose both with modernism and consumer culture by this compelling young British artist. Through Aug. 12. DeCordova Sculpture Park & Museum,
Lincoln. 781-259-8355, www.decordova.org