Which best describes the present-day universe?

The present-day universe is transparent because light can travel freely through space rather than being scattered by the dense early-universe plasma. Its expansion is accelerating, as observations show that distant galaxies are moving apart at an increasing rate. Stars also create heavier elements, such as carbon and iron, through nuclear fusion and stellar processes. Therefore, “transparent, expanding at an accelerated rate, stars produce heavy elements” is the best description.

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