The Ann Arbor District Library will host a Planet Viewing Party for all ages from 9 to 11 p.m., August 3, in the Pittsfield Branch parking lot, using participants’ equipment or library telescopes. In case of rain or excessive clouds, it’ll be held August 4.

Mars will be closer to the Earth than it has been since 2003, and the red planet’s next-closest approach won’t occur until 2035. It’s a great opportunity to get a good look at Mars’ polar cap and Saturn’s rings. NASA/JPL Solar System Ambassador volunteer Jennifer German will answer questions about NASA Mars rovers and landers.

Location: 2359 Oak Valley Dr., Ann Arbor. Park in the Ice Cube lot. For more information, call 327-4200 or visit aadl.org.