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Originally posted by frozenspark
I'd love to know how scientists can determine molecular structure of "matter" hundreds of lightyears away.
Originally posted by frozenspark
I'd love to know how scientists can determine molecular structure of "matter" hundreds of lightyears away.
Spectrometry is the spectroscopic technique used to assess the concentration or amount of a given chemical (atomic, molecular, or ionic) species. In this case, the instrument that performs such measurements is a spectrometer, spectrophotometer, or spectrograph.
Spectroscopy/spectrometry is often used in physical and analytical chemistry for the identification of substances through the spectrum emitted from or absorbed by them.
Spectroscopy/spectrometry is also heavily used in astronomy and remote sensing. Most large telescopes have spectrometers, which are used either to measure the chemical composition and physical properties of astronomical objects or to measure their velocities from the Doppler shift of their spectral lines.
Originally posted by Aquarius1
Originally posted by frozenspark
I'd love to know how scientists can determine molecular structure of "matter" hundreds of lightyears away.
That is a good question, they theorize and speculate is my guess.