![mesh of red ovals on a blue background](/sites/default/files/styles/front_page_card/public/ardra-llnl-project-card.png?itok=KmFt4ZEC)
Ardra
Researchers are testing and enhancing a neutral particle transport code and its algorithm to ensure that they successfully scale to larger and more complex computing systems.
![Visualization of Space Debris](/sites/default/files/styles/front_page_card/public/tessa-llnl-project-card.png?itok=JNbqvSwD)
TESSA
Testbed Environment for Space Situational Awareness software helps to track satellites and space debris and prevent collisions.
![closeup of simulation of vascular cells](/sites/default/files/styles/front_page_card/public/2021-02/harvey-card-LLNL.png?itok=2P-1M8OU)
HARVEY
Livermore researchers are enhancing HARVEY, an open-source parallel fluid dynamics application designed to model blood flow in patient-specific geometries.
![Real scanning electron microscope image of TATB powder, alongside a hypothetical scanning electron microscope image of TATB powder made to optimize its peak stress. The hypothetical image is made of smaller grains.](/sites/default/files/styles/front_page_card/public/2023-07/XAI_TATB_432x285.jpg?itok=XMmChs4_)
Explainable artificial intelligence can enhance scientific workflows
Using explainable artificial intelligence techniques can help increase the reach of machine learning applications in materials science, making the process of designing new materials much more efficient.
![Scattered fluffy clouds in the sky.](/sites/default/files/styles/front_page_card/public/2023-06/stratocumulus_Comp-ext_0.jpg?itok=KXAi_-vo)
Improving models of clouds and atmospheric turbulence
With simple mathematical modifications to a common model of clouds and turbulence, LLNL scientists and their collaborators helped minimize nonphysical results.
![cartoon of a person at a computer with a dog nearby](/sites/default/files/styles/front_page_card/public/2023-05/bssw-developer-survey.png?itok=Sqx6LZOx)
Surveys to understand developer health and happiness
Computer scientist Vanessa Sochat talks to BSSw about a recent effort to survey software developer needs at LLNL.