Blackbody spectrum from Wikipedia commons: As the temperature of an object decreases, the peak of the black-body radiation curve moves to lower intensities and longer wavelengths. The black-body radiation graph is also compared with the classical model.
Solving the mystery of blackbody radiation brings on the quantum revolution. Phil Schewe, Emily Edwards, and Steve Rolston discuss this pivotal moment for modern physics. 2006 Nobel Prize laureate John Mather discusses how his work relates to blackbody radiation. (This audio was recorded prior to the announcement of the 2012 Nobel Prize in physics. For information on how blackbody relates to the Nobel Prize, see related links)