Why Is It NOT Possible to Look All the Way

question 60

Multiple Choice

Why is it NOT possible to look all the way back to the Big Bang itself?

• A) Photons are not produced until the stars begin to shine at a redshift of .
• B) From redshifts of to 100,photons are gravitationally lensed by the dark matter in the universe.
• C) At redshifts of ,most of the photons are blocked by large amounts of cold gas and dust.
• D) For redshifts of ,photons are heavily altered because they easily react with individual protons and electrons in the universe.

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