Erica Ellington, who became fascinated with the universe when she was only 5 years old, this week will take Fiske Planetarium audiences out to the distant star clusters previously visited only in science fiction. The assistant professor in the University of Colorado at BoulderÂ’s department of astrophysics and planetary sciences, will present public programs on "Galaxies at the Edge of the Universe," on Tuesday, Jan. 12, and Friday, Jan. 15, at 7:30 p.m.