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 of dust in the upper atmosphere to form a dusty plasma in space. NASA plans to trigger cloud formation around the rocket's exhaust particles.  The clouds thus generated are intended to simulate naturally occurring phenomena called noctilucent clouds, which are the highest clouds in the atmosphere. The CARE experiment is intended to create an artificial dust layer at the boundary of space in a controlled sense, in order to "allow scientists to study different aspects of it, the turbulence generated on the inside, the distribution of dust particles and such."
The dust cloud is generated using the Nihka motor dust generator. The dust cloud is composed of aluminum oxide, carbon monoxide, hydrogen chloride, water, and nitrogen, as well as smaller amounts of carbon dioxide, hydrogen, monatomic chlorine, and monatomic hydrogen.
According to NASA, SHIMMER will track the CARE dust cloud for days or even months. The SHIMMER instrument has previously viewed natural noctilucent clouds for the past two years. The CARE will be the first space viewing of an artificial noctilucent cloud.
- Bernhardt, Paul; Scales, Wayne; Sternovsky, Zoltan; Kelley, Michael; Hysell, David; Holzworth, Robert (37th COSPAR Scientific Assembly. Held 13-20 July 2008, in Montréal, Canada., p.261). "The Charged Aerosol Release Experiment (CARE) Program". Astrophysics Data System. Retrieved 2009-09-16.
- "NASA's Charged Aerosol Release Experiment (CARE), Plans To 'Make Clouds' Tonight . . .". weaselzippers.net. September 15, 2009. Retrieved 2009-09-16.
- Moskowitz, Clara (updated 2:37 p.m. ET Sept. 16, 2009). "NASA rocket aims to create artificial clouds". Msnbc. Retrieved 2009-09-16.
- Bernhart, Paul (updated May 19 2009). "Update on CARE".
- "Night Time Artificial Cloud Study Using NASA Sounding Rocket". NASA. Retrieved 2009-09-16.
- Night Time Artificial Cloud Study Using NASA Sounding Rocket, NASA
- An Update on theCharged Aerosol Release ExperimentCARE