Behind the Scenes

Cosmology with Geometry Nodes

Bart ·

I love it when Blender is used for science. Earlier this week we reported how Blender was used on the cover of Nature, and today we have an amazing story from MohammadHossein Jamshidi, who uses Blender for his research in cosmology.

MohammadHossein writes:

The early ideas to use Blender for Cosmology were enlightened in my mind from the creative and delightful works of Seanterelle on YouTube. I was impressed by his nice simulations with Geo Nodes that had eye-catching performance, and I tried to use Geometry Nodes for cosmological computations.

In 2024, for one of our projects on the CMB, we utilized Geometry Nodes as a tool for computation, visualization, and algorithm debugging. We needed a tool to visualize caps and stripes of different sizes on the CMB sky, to check how much of their areas overlap with the Galactic Mask (the areas where we can’t receive CMB light due to contamination by our Galaxy). By utilizing the Geo Nodes and some simple rigging, we were able to make such a visualizer.

Link

Author Bart
I have a LONG history with Blender - I wrote some of the earliest Blender tutorials, worked for Not a Number and helped run the crowdfunding campaign that open sourced Blender (the first one on the internet!). I founded BlenderNation in 2006 and have been editing it every single day since then ;-) I also run the Blender Artists forum and I'm Community Lead at n8n.
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