Astronomers close in on ancient signal from 'one of the most unexplored periods in our universe'

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

  Science/Technology   Oct 17, 2025   0   9  Add to Reading List
Astronomers close in on ancient signal from 'one of the most unexplored periods in our universe'
A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.
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