Accelerating Growth of Universe, Dark Energy Confirmed

Accelerating Growth of Universe, Dark Energy Confirmed

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The pesky reality that the universe’s expansion is accelerating — an observation that prompted astronomers to invoke an unknown entity called dark energy to explain it — has been further confirmed by new measurements. Scientists have used cosmic magnifying glasses called gravitational lenses to observe super-bright distant galaxies, giving a measure of how quickly the universe is blowing up like a giant balloon. They found, in agreement with previous measurements, that the universe’s expansion is indeed speeding up over time.

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