When you're floating around in the International Space Station, you're constantly reminded that you're having a literally out-of-this-world experience. Case in point: this is what it looks like when you light a candle in microgravity.
Because of the lack of gravity, the air's density is the same in all directions, so that means the heat disperses evenly, making the flame all the same color. Wow.
[DVICE via TechEBlog]