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optics - How do astronomers identify different elements from the combined emission spectrum of multiple substances? - Physics Stack Exchange

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What is one of the causes of the breadth of spectral lines? - Quora

optics - How to calculate the light emission spectrum of scintillator(CsI)? - Physics Stack Exchange

Visualizing heterogeneous dipole fields by terahertz light coupling in individual nano-junctions

Quaternary, Free Full-Text

optics - How can the limited to infrared James Webb space telescope do spectroscopy of the exoplanets' atmosphere without seeing in the visible spectrum? - Physics Stack Exchange

Jupiter Science Enabled by ESA's Jupiter Icy Moons Explorer

spectroscopy - Machine to identify substances - Physics Stack Exchange

spectroscopy - How can every atom have unique spectral lines? - Chemistry Stack Exchange

Enabling smart vision with metasurfaces

Formation of Spectral Lines

How do we know what elements are inside celestial objects? Is it all just speculation, that is proven by experiments here on Earth? - Quora

Materials, Free Full-Text

Is there any connection between the visible color of something and its absorption/emission spectrum? - Quora

Scientific method - Wikipedia