Invisible Universe

In trying to energize such topics as the electromagnetic spectrum and quasars, Invisible Universe does a disservice to its subject and guide, astrophysicist Dr. Fiorella Terenzi, whom the box pitches as ''a cross between Carl Sagan and Madonna.'' Dressed in a miniskirt and speaking in a thick Italian accent, she reads cosmic poetry with Timothy Leary and offers New Age music composed using radio signals from galaxies far away. In the end, this slick electronic coffee-table book veers light-years off the target. C