In preparation for the Transit of Planet Mercury during November, Dr. Colette Salyk, an expert on planets who coletteteaches astronomy at Vassar College, will speak at the Newburgh campus of SUNY Orange. During Dr. Salyk’s talk she will describe just what eclipses and transits are and why and when they occur. She will also explain how astronomers use transits to find planets around other stars. Then she will tell what to expect for November's transit of the sun by Mercury. [SUNY Orange will also observe the Transit of Mercury with special observatory equipment.