Fire in the hole! Scientists will intentionally light a fire inside an empty Cygnus resupply vehicle tomorrow after it leaves the space station and before it re-enters Earth's atmosphere. The experiment will help us understand how fire spreads in space so we can develop better materials, technologies and procedures to keep crews safe. Details: http://www.nasa.gov/feature/fire-in-the-hole-studying-how-flames-grow-in-space | International Space Station