Reid Wiseman, NASA astronaut and part-time master of Vine videos, has done it again. This time he’s showing off a flame experiment on the International Space Station called the Flame Extinguishment Experiment-2 (FLEX-2).

“Ignition, jellyfish of fire, warp-drive finish!” wrote Wiseman on Vine yesterday (Aug. 22). He also posted a slow-motion capture of flames in action, which you can see below the jump. FLEX-2, as the name implies, is the second flame experiment on board the International Space Station. NASA states the goal is to understand how small fuel droplets burn in space.

“The FLEX-2 experiment studies how quickly fuel burns, the conditions required for soot to form, and how mixtures of fuels evaporate before burning. Understanding these processes could lead to the production of a safer spacecraft as well as increased fuel efficiency for engines using liquid fuel on Earth,” the agency wrote.