NASA astronaut Frank Rubio is set to return to Earth this fall after setting the record for the longest single spaceflight by a U.S. astronaut.
), which studies burning in microgravity to help researchers select safer materials for spacecraft and determine optimal fire suppression techniques. This image shows a sphere of acrylic burning in microgravity during one of the tests.). On Earth, bubbles that form in molten materials rise to the surface and pop before the material solidifies. In microgravity, bubbles can become trapped, leaving pores or tiny holes that can reduce the finished material’s strength and structural integrity.
is one of several experiments that investigate this process.On this Nov. 15, 2022, spacewalk, Frank Rubio and NASA astronaut Josh Cassada assemble a mounting bracket on the station in preparation for the installation of the first pair of rollout solar arrays, known as iROSAs. It took six spacewalks, the final one in June 2023, to install all the arrays, which are expected to enable a 30% increase in the power available for science and operations on the space station.
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