What technique allows NASA instruments to observe specific layers of the solar atmosphere like the chromosphere?

Answer

Observing specific wavelengths outside the visible spectrum, such as EUV.

NASA instruments capture data by observing narrow bands of light emitted by specific atoms, often outside the visible spectrum, such as extreme ultraviolet (EUV). Isolating these narrow bands allows scientists to observe specific layers without being overwhelmed by total visible light intensity.

What technique allows NASA instruments to observe specific layers of the solar atmosphere like the chromosphere?

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