Date: April 26 to April 27
Time: Varies
Location: David Zwirner, 533 W. 19th St.

This weekend is the last chance to view Thomas Ruff's two latest exhibits, photograms and ma.r.s. The photogram series showcases abstract figures inspired by 1920s photography. The ma.r.s. exhibit includes actual photos of Mars taken aboard NASA spacecraft. 3D glasses will also be distributed, making the out-of-this-world images come alive.