Editor's note: CANCELLED Geology professor John Holloway will lead a virtual tour of a black smoker — a hydrothermal vent under the Pacific Ocean — and discuss molecules and how they survive in extreme undersea environments and, eventually, form life. The lecture will be at 7 p.m. Thursday, Jan. 10, at ScienceWorks Hands-On Museum, 1500 E. Main St. Admission is $5. Call 541-482-6767 or see www.scienceworksmuseum.org.