cosmic distances – Page 4 – National Radio Astronomy Observatory

Why Can We See Stars That Are Billions of Light Years Away?

Question: I can’t get seem to find a thoughtful yet scientific answer to this question, I was hoping you…

Question: What is the difference between Doppler shift of light and Natural light spectra (blue for young and red…

Question: The Voyager 1 spacecraft has left our solar system and is now in interstellar space but where exactly…

Question: If the sun disappears it would take us 8 min. to realize it. How in the world, what…

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