Well, in microgravity, while heat can't rise and cold can't sink, so you won't have convection, you will still have diffusion. If you contain your leaves and hot water in some sort of container (I'm thinking french-press) and give it a good stir or shake, you should get a fairly good cuppa.
As for flavor -- well, from what I've read, odors in space are not perceived as strongly as they are here on earth (low pressure's to blame, also the aforementioned lack of convection to bring the odors up to the nose), so the stronger flavored teas (such as Earl Grey) might be preferred.
--doug
Well, in microgravity, while heat can't rise and cold can't sink, so you won't have convection, you will still have diffusion. If you contain your leaves and hot water in some sort of container (I'm thinking french-press) and give it a good stir or shake, you should get a fairly good cuppa. As for flavor -- well, from what I've read, odors in space are not perceived as strongly as they are here on earth (low pressure's to blame, also the aforementioned lack of convection to bring the odors up to the nose), so the stronger flavored teas (such as Earl Grey) might be preferred. --doug