When you light a candle in orbit........

Hello!

You must have seen a candle flame.......
always upright, even if you tilt the candle the flame always stays up. Why???????

Because hot gas is lighter than its surroundings so it tries to float above cool air just like air bubbles in a pool.
But I would like to think of lighting a candle in one of the science capsule of the ISS orbiting Earth i.e. in outer space. How would it be and in which way the candle flame points, if you can think of it please write it down in the comments............

Thanks