Concept
Spectral Line
A fingerprint of an atom or molecule in light.
A narrow feature in a spectrum produced by atoms or molecules absorbing or emitting photons at specific wavelengths.
Overview
A narrow feature in a spectrum produced by atoms or molecules absorbing or emitting photons at specific wavelengths.
See also
Redshift & Hubble's Law
The fingerprint of an expanding universe.
Zodiacal Dust
The dust cloud lit up as zodiacal light.
Polycyclic Aromatic Hydrocarbons
Soot-like molecules glowing in the infrared.
Interstellar Ice
Frozen molecules coating cold dust grains.
Interstellar Molecule
Interstellar molecule or chemical process found in space.
Diatomic Molecule (ISM)
Interstellar molecule or chemical process found in space.