Aerosol
In space and astronautical engineering, aerosol refers to a suspension of fine solid particles or liquid droplets in a gas. Aerosols can be naturally occurring, such as dust and volcanic ash, or they can be artificially created, such as rocket exhaust and satellite debris. Aerosols can have significant impacts on spacecraft and their instruments, including causing contamination and interference with optical systems. They can also have important effects on the Earth's atmosphere, including contributing to climate change and affecting air quality.
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