Concept
Blueshift
Light shifted to shorter wavelengths.
A shift of spectral lines toward shorter wavelengths, indicating motion toward the observer.
Overview
A shift of spectral lines toward shorter wavelengths, indicating motion toward the observer.
See also
Black Holes
Regions where gravity stops light itself.
Zodiacal Dust
The dust cloud lit up as zodiacal light.
Photon Sphere
Where light itself can orbit a black hole.
Cosmic Dark Ages
The long pre-starlight era of the universe.
Bolometric Magnitude
Brightness across all wavelengths.
Spectral Line
A fingerprint of an atom or molecule in light.