NASA Artificial Cloud Experiments
2 July 2026 | ZEROGeoengineering.com | Documents below describe NASA experiments to study movements in the upper atmosphere. The experiments involve the release of trimethyl aluminum (TMA) and other materials to make artificial “clouds.”
These NASA experiments underscore the wide regulatory gaps in legislation passed in Tennessee, Louisiana, and Florida, which target only those activities “with the express purpose” of altering temperature, weather, climate, or the intensity of sunlight.
NASA dismisses environmental and health impacts but nevertheless, trimethyl aluminum (TMA) is hazardous.
Source: https://pubchem.ncbi.nlm.nih.gov/compound/Trimethylaluminum
Source: https://nj.gov/health/eoh/rtkweb/documents/fs/1926.pdf
The study below documents the important role of remote sensing instruments, sensors, and microwave (radiation) in atmospheric experimentation.
Transport, Chemistry, and Energetics of Water in the Mesosphere and Lower Thermosphere and Implications for Polar Mesospheric Cloud Occurrence
“…The combination of the lidar and mapping imager thus provides strong ground-based diagnostics for the launch. The launch will be at twilight so that any formation of PMCs from the plume will be visible from the ground. Trimethyl aluminum (TMA) trails will be released in addition to the water from a separate payload canister. The TMA is chemi-luminescent and can be tracked optically from the ground with cameras and the naked eye. The movement of the TMA trails will thus provide a direct indication of how the water is moving since both will be transported by the background winds. The TMA measurements will be helpful both for real-time water cloud tracking and for post-flight analysis.”
08.1 Remote sensing instruments and Sensors
08.1.4 Microwave, Millimeter Waves, and Submillimeter Waves
Source: https://techport.nasa.gov/projects/79580
NASA and Vapor Tracers
Source: https://www.nasa.gov/soundingrockets/about-vapor-tracers/
Wind measurements: Trimethylaluminum (TMA) chemical release technique
“Chemical release techniques have been used since the earliest days of sounding rocket measurements in the upper atmosphere.”
Source: https://ui.adsabs.harvard.edu/abs/2013aisi.conf…47L/abstract
Trimethyl Aluminum Clouds over Norway
Source: https://www.friendsofnasa.org/2024/11/trimethyl-aluminum-clouds-over-norway.html
2002 Spirit II – TMA Chemical Release Experiment
“Atmospheric scientists have used Trimethyl Aluminum or TMA releases for decades as a tracer element of the neutral winds of the upper atmosphere.”
Source: https://www.agriculturedefensecoalition.org/sites/default/files/file/aluminum_6/6R_11_2002_NASA_Trimethyl_Aluminum_TMA_Releases_Used_for_Decades_as_Tracer_Element_in_Upper_Atmosphere_2002.pdf
Original Source: http://spirit.ee.psu.edu/spiritii/tma.html
Why Is NASA Creating Clouds in the Sky Over Many Countries Around the World?
“The primary goal of NASA’s cloud seeding experiments is to study movements in the upper atmosphere.”
Source: https://dailygalaxy.com/2024/12/why-is-nasa-creating-clouds-in-the-sky-over-many-countries-around-the-world/
GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 178–182, doi:10.1029/2012GL054201, 2013
3 Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
“Bismuth tri-iodide (BiI3) is an example of an artificial IN ( ice nuclei ) and has been suggested as cirrus seeding material [Mitchell and Finnegan, 2009]
…the seeding material could be injected at cirrus levels by commercial aircraft.”
Source: https://ntrs.nasa.gov/api/citations/20130013092/downloads/20130013092.pdf
PDF: 2013 NASA Cirrus cloud seeding has potential to cool climate
Bismuth triiodide BiI3 Hazards Identification Signal word: Danger
Source: https://ltschem.com/msds/BiI3.pdf
The May 1972 NASA report below documents the important role of satellites in weather modification experiments.
Potential Value of Satellite Cloud Pictures In Weather Modification Projects
“This is a report on a simple but revealing investigation of the potential value of satellite cloud pictures in weather modification projects.”
Satellite data are also being used in thunderstorm and hurricane research, operational forecasting, and forecasting research…
…Until now there has not been any attempt to assess the possible value of the satellite data in aiding weather modification projects, except in the research on modification of hurricanes.”
“First, the stimulation of cloud growth by heavy silver iodide seeding to release latent heat and, second, the release of collodial instability through seeding with finely ground sodium chloride.”
Source: https://ntrs.nasa.gov/api/citations/19720025950/downloads/19720025950.pdf
PDF 1972 NASA Potential Value of Satellite Cloud Pictures In Weather Modification Projects
1967 Laboratory and Theoretical Investigation of Chemical Release Experiment
Source: https://ntrs.nasa.gov/api/citations/19670019605/downloads/19670019605.pdf
PDF: 1967 Laboratory and Theoretical Investigation of Chemical Release Experiment NASA
1963 Chemiluminescence of trimethyl aluminum released into the upper atmosphere
Source: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/JZ068i020p05895
NASA is a federally funded ICAMS weather enterprise agency authorized by the Weather Research and Forecasting Innovation Act of 2017 (Public Law No. 115-25, Title IV, sec. 402, 15 U.S.C. § 8542).
Related
‘‘Weather Research and Forecasting Innovation Reauthorization Act of 2026’’