Charged Aerosol Release Experiment
The Charged Aerosol Release Experiment also known as CARE, is a project run by NASA which will use a rocket to release dust in the upper atmosphere to form a dusty plasma in space. The clouds thus generated are intended to simulate naturally occurring phenomena called noctilucent clouds, which are the highest clouds in the atmosphere.
Source: Wikipedia — Charged Aerosol Release Experiment (CC BY-SA 4.0)