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Where did the oldest light in the universe come from? To answer this question is to reveal some of the universe’s most remarkable secrets.
As much as 85 percent of the matter in the universe is said to be “dark matter.” How can we detect such matter when it does not reflect or emit light?
Astrophysics has shown that dark energy exists. How does this dark energy, which permeates space, affect the universe?
A black hole is an amazing pitch-black celestial object that radiates unimaginable levels of energy while at the same time swallowing up everything―even light itself.
