![](https://science.nasa.gov/wp-content/uploads/2023/09/pool-boiling.webp?w=4096&format=png)
Pool Boiling Experiment (PBE)
Liquid heated to boiling point in 1-g, generating vapor bubbles that rise. Right: Liquid heated to boiling point in microgravity, which occurs in the absence of natural convection or buoyant flows. Under these conditions, bubbles generated at the heater coalesce into a single large bubble.
Credits: NASA
Image CreditNASA
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