A group of undergraduate students at the University of California at San Diego microgravity lab is preparing for an experiment on NASA's zero-gravity training plane, known as the Vomit Comet, to test and observe how biofuel flames burn in a zero-gravity environment. The group expects the small biofuel flame to burn as a perfect sphere during the flight, rather than the uneven teardrop flame produced on Earth's surface by hot and cold air reacting to gravity around the flame. The findings could result in improved fire safety on the International Space Station, but it could also lead to increasing efficiency of biofuels in automobiles on Earth, said student project manager Sam Avery.

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