Space telescopes are vital instruments for exploring the universe, and their precision calibration depends critically on maintaining ultra-high vacuum conditions. Vacuum diffusion pump oil, prized for its extremely low vapor pressure, exceptional thermal stability, and superior lubricating properties, is now widely used in the vacuum systems of space telescopes, providing essential support for precise calibration.

During the calibration process, the instruments must operate in an ultra-high vacuum to prevent interference from trace gas molecules, which can affect optical imaging and data collection. Vacuum diffusion pump oil remains stable under extreme low and high temperatures, effectively preventing evaporation and contamination. Its excellent lubricating properties also minimize friction and wear between mechanical components, thereby extending the lifespan of critical parts. Experimental data have shown that the use of this oil significantly improves the stability of the calibration system and the accuracy of observational data, offering researchers more reliable measurements.

As space exploration and astronomical research continue to advance, improvements and wider applications of vacuum diffusion pump oil will lay a solid technical foundation for even higher-precision space telescopes and research instruments, helping scientists unlock the mysteries of the universe.