Science
New Observations Agree That the Universe is 13.77 Billion Years old – Universe Today
A new measure of the cosmic microwave background supports an older universe, and raises more problems for cosmology.
The oldest light in the universe is that of the cosmic microwave background (CMB). This light was formed when the dense matter at the beginning of the universe finally cooled enough to become transparent. It has traveled for billions of years to reach us, stretched from a bright orange glow to cool, invisible microwaves. Naturally, it is an excellent source for understanding the history and expansion of the cosmos.
The CMB is one of the ways we can measure the rate of cosmic expansion. In the early…
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