Candle flame in (L) normal and (M) low gravity. Floating flame balls in microgravity (R)
What does a candle flame look like in microgravity? In 2002, NASA did the experiment and found out that flames do strange things in low gravity, like break apart into tiny balls that move around like UFOs.
Link - Thanks moronic50!
As with everything else NASA puts out, the vid will probably be an artist's animation instead (complete with non-realistic colors). Even when they have actual footage (and stills) NASA loves to do wild illustrations and animations in spectacular colors, because the public loves it and in turn tells Congress to keep funding them on future projects.
http://www.youtube.com/watch?v=SZTl7oi05dQ