Cloud-Aerosol-Transport System (CATS) (IMAGE) NASA/Goddard Space Flight Center Caption This artist's rendition of the Cloud-Aerosol-Transport System (CATS) shows its location on the International Space Station, where it will measure the character and worldwide distribution of the tiny particles that make up haze, dust, air pollutants and smoke in the atmosphere. Credit NASA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.