The evolution and content of our ballooning universe
, and astronomers soon retracted their results when they realized dust in the Milky Way could explain their findings. This all-sky image shows the infant universe. It reveals 13.7 billion year-old temperature fluctuations., give or take 130 million years. In comparison, the solar system is only about 4.6 billion years old.
This estimate came from measuring the composition of matter and energy density in the universe. This allowed researchers to compute how fast the universe expanded in the past. With that knowledge, they could turn the clock back andScientists think that in the earliest moments of the universe, there was no structure to it to speak of, with matter and energy distributed nearly uniformly throughout.
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