Italian astronaut on space station sets new mission duration record by a woman. European Space Agency astronaut Samantha Cristoforetti enjoys another sunrise aboard the International Space Station. On June 6, she set a mission duration record for women in space.
Chemist for uranium nuclear fuels. A substance would only burn in a vacuum if it contained an oxidizer. There has to be an oxidizer for there to be fire. That doesn't mean that it requires oxygen, just a substance that facilitates the removal of electrons. 1 person found this useful.
Fire only happens when a flammable gas is mixed with oxygen. So, how does a solid candle burn? If you heat wax hot enough, it chemically decomposes into flammable gasses and those burn. The catch is that, to get wax that hot, it basically needs to be inside a flame already.