About Space Mushroom

Space Mushroom is a free, open materials database. Every value is shown with its unit, the conditions it was measured under and the source it came from, so you can check it before you rely on it.

What it holds

The database currently holds 629 material profiles across metals, polymers, ceramics, glasses, composites, carbon materials, semiconductors, coatings, thermal protection, shielding, lubricants, seals, electronics, regolith and in-situ materials, textiles and living materials, with a focus on materials used in space. It also publishes 41 data articles that answer common engineering questions from those records. The data is released under CC BY 4.0 and mirrored on Zenodo, Hugging Face, GitHub and Kaggle.

Who runs it

Simul Sarker builds and runs Space Mushroom and is responsible for what is published. The project started in October 2026 and is a member of the NVIDIA Inception Program. You can find the code and the open data on GitHub, Hugging Face and Kaggle. The project also has a LinkedIn page and a Facebook page.

How we keep it accurate

Profiles are drafted with the help of AI assistants from the sources they cite, then checked by automated tests before they are published: every number must be found in the source page or document it cites, every designation must be printed in its source, and a profile must reach a minimum depth to appear in search. Values that cannot be verified are removed, not guessed. Read the full process on the methodology page and the editorial policy.

Tell us when something is wrong

If a value does not match its source, we want to know. See how to contact us and how to report a correction.

Space Mushroom is a reference, not engineering advice. Check the cited source and the applicable standard before using a value in a safety-critical design.