Jefferson Exchange -- September 27, 2012, HOUR 2
The Sun's Heartbeat
Dress for heat; we're visiting the sun today. Middle age seems like an appopriate time for reflection, and scientists tell us our solar orb is roughly halfway through its life cycle. Astronomy writer and Old Farmer's Almanac science editor Bob Berman tells us some surprising facts and myths about our major source of heat and light in "The Sun's Heartbeat - and Other Stories from the Life of the Star that Powers Our Planet."