A white-hot tongue of flame darts from one of two propane-fired burners as this hot-air balloon ascends into the night sky at the 2008 Albuquerque Balloon Fiesta.
ED-0254-14
A white-hot tongue of flame darts from one of two propane-fired burners as this hot-air balloon ascends into the night sky at the 2008 Albuquerque Balloon Fiesta. (NASA photo / Tony Landis)October 2008NASA Photo / Tony Landis