Health/Science calendar

The Last Polar Bear: Facing the Truth of a Warming World The Globe Corner Bookstore will welcome Steven Kazlowski, wildlife photographer and recent recipient of the Ansel Adams award for photography. At 6 p.m. in the Brattle Theater at 40 Brattle St. in Harvard Square. Call 617-497-6277 or go to mountaineersbooks.org.

Public Cosmology Lectures The Harvard-Smithsonian Center for Astrophysics presents professor Richard Bond of the University of Toronto, winner of the 2008 Cosmology Prize from the Gruber Foundation and widely credited with influencing the current understanding of the known universe, including the role of dark matter. At 4 p.m., at Radcliffe Gymnasium, 10 Garden St., Cambridge; and at 7:30 p.m. at the Phillips Auditorium, 60 Garden St. The 7:30 p.m. lecture is followed by a viewing through telescopes, weather permitting. Go to www.cfa.harvard.edu/events/mon.html.

Art And Empire: Treasures From Assyria In The British Museum The Museum of Fine Arts, Boston, and The British Museum bring the splendor of ancient Assyria to Boston with this collection of Assyrian artifacts, including 250 objects from the ninth to seventh centuries B.C. At the Gund Gallery at the MFA, 465 Huntington Ave. Call 617-369-3447.

Events may be sent to healthscience@globe.com.