International Space Station experiments will search for key to soot-free flames
By 
Katrina Krämer2019-05-14T14:30:00
Microgravity research could help to burn fuels more cleanly and cut soot’s contribution to ill health and climate change
On board the International Space Station (ISS), astronaut Christina Koch is lighting candles to help scientists back on Earth resolve the long-standing question of why flames in microgravity produce less soot. Researchers hope that by understanding why soot formation is suppressed they can cut levels of it down here given that it is the second greatest contributor to global warming.