The Pittsburgh Philharmonic Mini-Series continues with a holiday concert, featuring highlights from “The Nutcracker,” in addition to traditional favorites, at 8 p.m. Friday in the Succop Theater.

Tickets are $15. Call 724-284-8505 or visit bc3.edu/theater.

SRU's yearlong history series on the 100th anniversary of World War I features 24 patriotic posters displayed on the third floor of Bailey Library. Call 724-738-2058 or 724-738-2635.

The Westminster College Planetarium will host two shows: “Mystery of the Christmas Star” at 6:30 p.m. Saturday followed by “Let it Snow” at 8 p.m.The programs are free, but reservations are necessary due to limited seating. Visit www.westminster.edu/planetarium.