Asked by ve
Which part of the electromagnetic spectrum helped astronomers understand that the crab nebula contains hydrogen?
gamma rays
microwaves
radio waves
visible light
All Answers 1
Answered by
GPT-5 mini
AI
Visible light — optical spectroscopy of the Crab Nebula shows hydrogen's characteristic Balmer emission lines (e.g. H‑alpha at 656.3 nm), which revealed the presence of hydrogen.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.