For all of you reading who are not completely 'up' on all of your Star Wars trivia, this is Han Solo frozen in Carbonite. What is Carbonite exactly? In Star Wars, it is a FICTIONAL ionic compound that is used to freeze and suspend the life of prisoners.
However, in REALITY, carbonite was one of the earliest coal-mining explosive made of nitroglycerin, wood meal, and other materials invented by Bichel.
Interesting tid-bit, but it would be way cooler if it could actually suspend life... (^_O)