University of Colorado at Boulder space physicist Daniel Baker will give a talk on Monday, Jan. 28, about the mysteries of the tiny planet Mercury and his involvement in NASA's upcoming mission there. Baker, who is director of the Laboratory for Atmospheric and Space Physics, or LASP, will speak from 4 p.m. to 5 p.m. in the JILA auditorium, located on the lower level of the JILA tower in the CU-Boulder Duane Physics building. The talk is free and open to the public. Parking is available in the Euclid Avenue Autopark and along Colorado Avenue, near Folsom Street.