1. There are so-called “oxygen candles” on board the ISS. After ignition, one such “candle” releases the amount of oxygen sufficient for one person for about a day.
2. On board the ISS is stored the “Disk of Immortality” – a repository of information that carries the encrypted DNA of prominent people like Stephen Hawking.
3. Separate sources of drinking water are installed in the Russian and American modules of the ISS. This is due to the fact that Russia and the United States use different water purification systems in such systems, and if they are mixed, the equipment may break down.
4. Fifteen countries have contributed to the creation and maintenance of the ISS.
5. The permanent crew of the ISS consists of six people.