Atmospheric aerosols are tiny particles suspended in the Earth's atmosphere, often emitted from natural sources like volcanoes, wildfires, and sea spray, as well as human activities like burning fossil fuels and agriculture. These aerosols have a significant impact on the Earth's climate and air quality, as they can scatter and absorb sunlight, contribute to cloud formation, and affect the Earth's radiation balance. Research in atmospheric aerosols aims to better understand their sources, composition, distribution, and effects on climate, air quality, and human health. Studying atmospheric aerosols is critical for developing effective strategies to mitigate their environmental and health impacts.