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University of Colorado at Boulder anthropology Professor Payson Sheets will give a free public talk on Monday, Sept. 17, about the site of Ceren in El Salvador, buried by volcanic ash 1,400 years ago and considered the best preserved ancient village in Latin America. The archaeology talk will be on campus at 7 p.m. in room 220 of the Education Building, located just north of the intersection of 15th Street and Broadway. Paid parking is available in the Euclid AutoPark located east of the University Memorial Center.

The University of Colorado at Boulder's 2007 Homecoming festivities kick off Friday, Sept. 28, at 5:15 p.m. with a parade through Boulder's University Hill neighborhood featuring NASA astronaut Steve Swanson as Grand Marshal. Other parade royalty will include Honored Faculty Professor Brett King and Honorary Marshals Deon Figures, Kanavis McGhee, Matt Russell and Alfred Williams, all former Buff and NFL players.

The University of Colorado's sportsmanship program, "Compete with Class" enters its fifth year at Folsom Field with this Saturday's gridiron match-up against Florida State University starting at 8 p.m. MST. A hotline, (303) 735-BUFF, will be available to fans to report unruly behavior. The hotline was installed midway through the season last year.

CU Buffs fans who are rowdy or who try to smuggle banned substances into Folsom Stadium at the University of Colorado at Boulder could find themselves ejected from the game under tight enforcement of rules violations planned by CU Police. CU Police Chief Joe Roy said this Saturday's 8 p.m. game with Florida State will follow the model for all home games of recent years in which violations of banned substances and materials, or disruptive and unruly behavior, could result in fans being booted from the game.

Ivan Doig, the acclaimed author of "This House of Sky" and 10 other books often set in Montana, will receive the Wallace Stegner Award from the University of Colorado at Boulder's Center of the American West on Thursday, Sept. 27. The center's highest award will be presented at 7 p.m. in the Wolf Law Building courtroom. The evening will feature a discussion with Doig conducted by Patty Limerick, professor of history and chair and faculty director of the Center of the American West, and Charles Wilkinson, distinguished professor of law at CU-Boulder.

A professor of civil engineering who has helped bring the basic necessities of water, electricity and sanitation to remote, poverty-stricken areas of the world has been selected as a co-recipient of the 13th annual Heinz Award for the Environment, among the largest individual achievement prizes in the world.

A fashion show to raise money for science scholarships will feature students modeling outfits they have designed and created, and will be held at the home of CU-Boulder Chancellor G.P. "Bud" Peterson on Sunday, Sept. 16, from 2 p.m. to 4 p.m. Hosted by Val Peterson, wife of Chancellor Peterson, the event will raise funds for Achievement Rewards for College Scientists, or ARCS, a national foundation dedicated to giving students scholarships in the natural sciences, medicine and engineering. The show is not open to the public.

A $20 million gift from University of Colorado at Boulder Distinguished Professor Marvin Caruthers will be the linchpin for construction of a new interdisciplinary biotechnology building on the CU-Boulder campus, a facility expected to revolutionize biotechnology and biomedical research and teaching, CU-Boulder Chancellor G.P. "Bud" Peterson announced Tuesday. The gift is one of the largest in the history of the University of Colorado at Boulder and the largest ever by a faculty member.

Chancellor G.P. "Bud" Peterson of the University of Colorado at Boulder will announce a major new initiative and related funding on Tuesday, Sept. 11, at 10 a.m. following his annual Campus Address. The chancellor's announcement will be in the chapel auditorium on the second floor of Old Main. Peterson's annual Campus Address also will be in the chapel beginning at 8:40 a.m. The address follows an introduction by physics Professor Uriel Nauenburg at 8:30 a.m. and a continental breakfast on the Norlin Quadrangle at 7:30 a.m.

The University of Colorado at Boulder's Fiske Planetarium will host Colorado Astronomy Day, featuring telescope demonstrations, talks and star shows, including one in Spanish, on Saturday, Sept. 15. Colorado Astronomy Day is part of CU-Boulder's Arts and Culture Week featuring the artistic and cultural highlights of the Boulder campus through a series of events from Sept. 13 through Sept. 20. The planetarium events are free and open to the public and begin at 1 p.m.