Final answer:
Professor Margaret Geller from UC Irvine is renowned for her research on the large-scale structure of the universe and has played a significant role in the mapping of galaxies.
Step-by-step explanation:
Professor Margaret Geller from UC Irvine is deeply interested in the large-scale structure of the universe. Her academic journey began with a BA in physics from the University of California at Berkeley, leading her to become the second woman to earn a PhD in physics from Princeton where she worked with esteemed cosmologist James Peebles. Her profound interest in how galaxies and clusters are organized inspired her to pursue an intensive series of surveys, contributing significantly to the mapping of galaxies.
This was a monumental task that would extend over many years, and she undertook this research at the Harvard-Smithsonian Center for Astrophysics, a leading institution in astronomy research.