Ask Question
16 December, 14:54

What evidence is there that the universe is expanding? Explain.

+2
Answers (1)
  1. 16 December, 15:39
    0
    This is evidenced by Doppler shift effect. This is the phenomenon where waves that are coming from an object that is accelerating towards your direction are heard at a higher frequency than that of objects moving away from you. This is the same for light (which also has wave-like properties). When observing distant galaxies, astronomers discovered that they all showed to be redshift (change in the frequency of light towards red color). This means that all galaxies are moving away from each other because the universe is expanding.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What evidence is there that the universe is expanding? Explain. ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers