
Stabilizing Earth’s temperature is possible
Stardust was founded under the belief that humanity’s best days don’t have to be behind us, and that we have the ingenuity to protect the planet we call home.
Stardust was founded under the belief that humanity’s best days don’t have to be behind us, and that we have the ingenuity to protect the planet we call home.

We're deviating from the safe zone, 2024 was the hottest year on record
We're deviating from the safe zone, 2024 was the hottest year on record
With temperatures continuing to climb. This means more extreme weather, mass migration, crop failures, and resource conflicts. These are not distant projections. They are unfolding now, accelerating faster than our capacity to respond.
With temperatures continuing to climb. This means more extreme weather, mass migration, crop failures, and resource conflicts. These are not distant projections. They are unfolding now, accelerating faster than our capacity to respond.

Humanity needs a different solution
Humanity needs a different solution
One that works at a planetary scale. One that can be deployed this decade, not in some distant future. One that buys us time and protects us from overheating.
Throughout all of human history, we have stewarded and shaped our environment and built a world that could sustain billions of people. Humanity fixed the ozone hole, eradicated diseases, and built systems that transformed the world.
One that works at a planetary scale. One that can be deployed this decade, not in some distant future. One that buys us time and protects us from overheating.
Throughout all of human history, we have stewarded and shaped our environment and built a world that could sustain billions of people. Humanity fixed the ozone hole, eradicated diseases, and built systems that transformed the world.

Proven by nature, perfected by science
Sunlight Reflection Technology (SRT) applies a natural atmospheric process by introducing safe particles into the very high atmosphere to reflect a small portion of sunlight, helping stabilize rising temperatures in a safe, controlled, and reversible way.


Proven by nature, perfected by science
Sunlight Reflection Technology (SRT) applies a natural atmospheric process by introducing safe particles into the very high atmosphere to reflect a small portion of sunlight, helping stabilize rising temperatures in a safe, controlled, and reversible way.


Proven by nature, perfected by science
Sunlight Reflection Technology (SRT) applies a natural atmospheric process by introducing safe particles into the very high atmosphere to reflect a small portion of sunlight, helping stabilize rising temperatures in a safe, controlled, and reversible way.



Proven by nature, perfected by science
Sunlight Reflection Technology (SRT) applies a natural atmospheric process by introducing safe particles into the very high atmosphere to reflect a small portion of sunlight, helping stabilize rising temperatures in a safe, controlled, and reversible way.

Built on scientific rigor
Our team spans atmospheric physics, chemistry, materials science, aerospace engineering, and environmental policy. Key findings will be published in peer-reviewed literature with our academic collaborators. Our work is grounded in responsible development, built in partnership with scientific and governance experts to ensure this technology serves humanity, not just those who build it.

Built on scientific rigor
Our team spans atmospheric physics, chemistry, materials science, aerospace engineering, and environmental policy. Key findings will be published in peer-reviewed literature with our academic collaborators. Our work is grounded in responsible development, built in partnership with scientific and governance experts to ensure this technology serves humanity, not just those who build it.

Built on scientific rigor
Our team spans atmospheric physics, chemistry, materials science, aerospace engineering, and environmental policy. Key findings will be published in peer-reviewed literature with our academic collaborators. Our work is grounded in responsible development, built in partnership with scientific and governance experts to ensure this technology serves humanity, not just those who build it.

A responsible approach is essential
The work we do is grounded in our founding mission: to advance the responsible development of sunlight reflection technology. In partnership with external scientific and governance experts, we’ve been developing a set of principles to guide our work and decision-making.

A responsible approach is essential
The work we do is grounded in our founding mission: to advance the responsible development of sunlight reflection technology. In partnership with external scientific and governance experts, we’ve been developing a set of principles to guide our work and decision-making.

A responsible approach is essential
The work we do is grounded in our founding mission: to advance the responsible development of sunlight reflection technology. In partnership with external scientific and governance experts, we’ve been developing a set of principles to guide our work and decision-making.
Research
Research
Collaborative research with leading scientists
Collaborative research with leading scientists
Collaborative research with leading scientists

R. Yahav, A. Spector, D. Kushnir, and M. C. Waxman
In collaboration with our colleagues from:
Columbia University
From Particles to Policy: Technical Building Blocks for Multi-State SAI Coordination
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T. Kislev, A. Berkman, G. Schwartz Roitman, K. Neiman, A. Lostier, S. Nayak, A. Goldbourt, D. Avnir, M. N. Romanias
In collaboration with our colleagues from:
Hebrew University, Tel Aviv University, IMT Nord Europe
Engineered amorphous silica particles with minimized heterogeneous uptake behavior for stratospheric aerosol injection
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Y. Segev, E. Y. Levine, Y. Bar-Yoseph, O. Amsallem, Y. Dagan, E. Laor, S. Rahamim, A. Luski, E. Daniel, E. Hettiarachchi, A. Spector
In collaboration with our colleagues from:
UC San Diego, Technion
Efficient dispersal of submicron solid particles for stratospheric aerosol injection
Read more

R. Yahav, A. Spector, D. Kushnir, and M. C. Waxman
In collaboration with our colleagues from:
Columbia University
From Particles to Policy: Technical Building Blocks for Multi-State SAI Coordination
Read more

T. Kislev, A. Berkman, G. Schwartz Roitman, K. Neiman, A. Lostier, S. Nayak, A. Goldbourt, D. Avnir, M. N. Romanias
In collaboration with our colleagues from:
Hebrew University, Tel Aviv University, IMT Nord Europe
Engineered amorphous silica particles with minimized heterogeneous uptake behavior for stratospheric aerosol injection
Read more

Y. Segev, E. Y. Levine, Y. Bar-Yoseph, O. Amsallem, Y. Dagan, E. Laor, S. Rahamim, A. Luski, E. Daniel, E. Hettiarachchi, A. Spector
In collaboration with our colleagues from:
UC San Diego, Technion
Efficient dispersal of submicron solid particles for stratospheric aerosol injection
Read more

Stardust Labs
Composite sub-micron solid particles engineered to enable safe, controllable, efficient, and practical SAI
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E. Waxman, A. Spector, Y. Lederer, Y. Segev, T. Kislev, Y. Yedvab, D. Kushnir, and R. Yahav
A proposal for the safety and controllability requirements that SRM systems should meet
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A. Lostier, Y. Segev, T. Kislev, G. Schwartz Roitman, N. Locoge, M. N. Romanias
In collaboration with our colleagues from:
IMT Nord Europe
Uptake of stratospheric species on minerals proposed for stratospheric aerosol injection
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Y. Lederer, N. Wygoda, D. Halbertal and B. E. J. Rose
In collaboration with our colleagues from:
SUNY (Albany)
Solid-particle stratospheric aerosol injection: a 2-D modelling exploration of the design space
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T. Kuzibardov, A. Yaverboim, T. Kislev, E. Abramov
In consultation with our colleagues from:
The amorphous silica industry
Feasibility Study for Industrial Scale Submicronic Engineered Amorphous Silica Particle (SEASP) Manufacturing for Stratospheric Aerosol Injection (SAI)
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