Subject: fire in space
Apparently this has been going on for several years. When you think about it, duh. Of course they're testing how fire behaves in space (i.e. zero-g). Flames always go up in a gravitational environment, but in zero-g there is no "up". So how does it behave? They're wrapping up an experimental program on the subject.

https://www.nasa.gov/centers-a...