This photograph from CFM is a candle flame burning over time in microgravity, it shows that the candle flame continues to grow and exhibits less soot.
http://nix.ksc.nasa.gov/info;jsessionid=5us8tcd4p8c4m?id=MSFC-9902615&orgid=11
January 1, 1997
NASA Marshall Space Flight Center (NASA-MSFC)
No copyright protection is asserted for this photography[1]
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