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PBS News Hour
Evidence of cosmic inflation expands universe understanding
Scientists say they have found evidence confirming a theory that our cosmos expanded from almost nothing to its first huge growth spurt in just fractions of a second after the Big Bang. A telescope at the South Pole revealed patterns and skewed light waves created by gravitational ripples from the incredible expansion. Gwen Ifill interviews Sean Carroll of the California Institute of Technology.
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This episode is the July 19, 2023 broadcast.
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