George Keyworth II, White House science adviser to former President Ronald Reagan from 1981 to 1986, will speak at the University of Colorado at Boulder on Tuesday, Jan. 31, at 7 p.m. in room 270 of the Hale Science Building. The free, public event is part of a yearlong lecture series titled "Policy, Politics and Science in the White House: Conversations with Presidential Science Advisers," sponsored by CU-Boulder's Center for Science and Technology Policy Research.