Figure 1 the lagoon nebula is composed of clouds of gas and dust
Space is a beautiful place, but its photogenic nature only tells half the story — there is so much exciting yet bizarre chemistry going on up there. These insights have been made possible through years of extensive development and improvement of spectroscopic techniques. The following methods are used to study the chemistry of space, and they are growing ever-more sophisticated and precise:
■ emission and absorbance spectroscopy
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