red shift

Questions

What does red shift mean?

Light spectra shifted towards red, as by elongation of light waves from a source moving away from the detector.

How to pronounce red shift

1. Open the pronunciation page — Open the Speakur entry for “red shift”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “red shift”.
4. Repeat and practice — Say “red shift” aloud, matching stress and vowels until it feels natural.