No, not a UFO. The UCSD library, which features prominently in Rainbow's end, is named after Dr. Seuss (his real name, anyway, Theodore Geisel.) It's like living in the not-too-distant future!
For some time I'd somehow missed Vinge's Rainbow's End. It's a fun read about living in the pre-Singularity End Times, and it's especially fun if you know San Diego well. Of course I liked the focus on UCSD, although
Get more future San Diego in this SD City article about "America's Final City".