The second phase consisted of the most comprehensive, detailed examination of the condition and construction of the Star-Spangled Banner to date, which provided critical information for later work. This included scientific studies with infrared spectrometry, electron microscopy, mechanical testing, and determination of amino acid content by a New Zealand scientist, and infrared imaging by a NASA scientist.
The second phase involved a thorough, in-depth examination of the Star-Spangled Banner's condition and construction, which yielded crucial data for future endeavors. This included scientific studies using infrared spectrometry, electron microscopy, mechanical testing, and amino acid content analysis by a New Zealand scientist, as well as infrared imaging conducted by a NASA scientist.