What term describes the phenomenon where light from distant galaxies is stretched to longer wavelengths, indicating the universe is expanding?
Category: Science · Difficulty: hard
Hint: Consider how light behaves when objects move away.
Answer
Redshift
Explanation
Redshift occurs when light from an object is stretched to longer wavelengths as the object moves away, indicating the universe's expansion.
This is a hard science riddle — a tricky one that takes a little thought. The answer is Redshift.
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