Lasarium

Who remembers Lasarium, the laser shows set to music produced by and at the old Hayden Planetarium?

A pretty decent sound system would play a series of tunes and a "laserist" would project images upon the planetarium's domed cealing. At the same time, the star projector would periodically come on, providing a good backdrop, especially for the spacier stuff like Pink Floyd. The first Lasarium featured a mixture of musical styles, from metal to classical, but subsequent shows were often dedicated to one musical style or performer. There was Laserrock 1, a show set to "Dark Side of the Moon," and a classical production.

Tickets were pretty reasonable, and it was a popular place to take a date.