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    complex organic molecules (COMs) tagged posts

    Cheers! NASA’s Webb finds Ethanol, other Icy Ingredients for Worlds

    March 18, 2024, Categories  Astronomy/Space

    Graphic titled “NGC 1333 IRAS 2A Protostar, MIRI Medium -Resolution Spectroscopy” shows a graph of optical depth on the y-axis versus wavelength of light in microns on the x-axis. The x-axis ranges from 6.8 microns on the left to 8.6 microns on the right, labeled in even increments of 0.2 microns. The y-axis ranges from 0 on the top to about 0.65 on the bottom, with labeled tick marks at 0.2, 0.4, and 0.6. A jagged white line with several prominent valleys extends horizontally. Vertical bands in different colors mark different wavelength regions and are labeled with molecular names and formulas.
    NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) has identified a variety of complex organic molecules that are present in interstellar ices surrounding two protostars. These molecules, which are key ingredients for making potentially habitable worlds, include ethanol, formic acid, methane, and likely acetic acid, in the solid phase. The finding came from the study of two protostars, IRAS 2A and IRAS 23385, both of which are so young that they are not yet forming planets.
    Illustration: NASA, ESA, CSA, L. Hustak (STScI). Science: W. Rocha (Leiden University).

    What do margaritas, vinegar, and ant stings have in common? They contain chemical ingredients that NASA’s James Webb Space Telescope has identified surrounding two young protostars known as IRAS 2A and IRAS 233...

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