The Adler holds the distinction of being the first planetarium built in the Western Hemisphere. Watch the 3-D multimedia StarRider show that incorporates real images from space probes into shows on aliens, black holes and Mars. Explore a museum exhibiting the history of space travel, timepieces, ancient scientific instruments, space-age hardware, a meteorite and the evolution of astronomy. The museum's historic Sky Theater has shown the night sky since 1930. Summer hours daily 9:30 am-6 pm; winter hours daily 9:30 am-4:30 pm. First Friday of every month is "Far Out Friday" with extended hours: 9:30 am-10 pm. Admission ranges US$10-$23 adults, US$6-$19 children and US$8-$21 seniors. Cheapest rate includes no shows while the highest rate includes two shows. US$5 for each additional show; US$20 adults, US$17 seniors and children after 4:30 pm on Far Out Friday, includes admission to shows and special demonstrations. 1300 S. Lake Shore Drive, Chicago. Phone 312-922-7827. http://www.adlerplanetarium.org.