University of Colorado at Boulder alum-astronaut Scott Carpenter will be on campus on Friday, Jan. 31, to talk about his new book, "For Spacious Skies: The Uncommon Journey of a Mercury Astronaut." The free talk and book signing will be held in the Old Main Chapel at 5:30 p.m. and is open to the public. Carpenter, the second astronaut to orbit the Earth, grew up in Boulder and became one of seven Project Mercury astronauts to take part in America's pioneering space program in the 1960s.