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Pressurization: Rare gases, such as helium and xenon, are used in pressurization systems for spacecraft and aircraft. Helium is commonly used in aerospace applications due to its low density and non-reactive nature, making it ideal for pressurizing fuel tanks and other critical systems. Cooling: Rare gases, especially helium, are used for cooling sensitive aerospace equipment and instruments. Its low boiling point and high thermal conductivity make it suitable for maintaining low temperatures in cryogenic applications, such as cooling rocket engines or sensitive electronic components. Propulsion: Rare gases, like xenon, are used in ion propulsion systems for satellites and deep space missions. Ion engines utilize the electrically charged particles of xenon to generate thrust, providing efficient and precise propulsion in space.

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