How things burn in a spacecraft Flame in Freefall
On Earth, hot gas rises and pulls a flame into a teardrop. In freefall nothing rises, so the flame becomes a sphere.
Illustration, made with AI. Not NASA footage.
WHY IT MATTERS
More oxygen, bigger flame.
A Moon base will run at 30% oxygen instead of Earth’s 21%. This site gathers NASA’s microgravity fire experiments and lets you check any everyday item against them.
Moon Base · 30% O₂
ISS · 21% O₂
What’s in the database right now
13
NASA experiments
44
papers from NTRS
147
test conditions that name a fuel
70
fuels and materials named
Counted live from the research database. Test conditions are extracted from the papers by AI and are not all reviewed by a person.
Most-tested materials
By number of test conditions in the database. Names are as the papers write them.
Where to go
Scan
Photograph an item, confirm what it’s made of, and see how those materials did in the tests.
My items
Everything you’ve scanned, grouped into spaces, saved on your device.
Ask
Ask a question and get an answer that cites the NASA papers.
This is NASA spacecraft research, not a home safety rating.