How old is the universe? For decades astronomers have been coming up with increasingly accurate estimates for its age. Now, a new research paper based on observational data gives accurate estimates so far: 13.77 billion years old, chronological change or give 40 million years.
The research, published in the journal Cosmology and Astroparticle Physics, analyzed the universe’s oldest light sources based on data from the Chilean National Science Foundation’s Atacama Cosmology Telescope (ACT). The researchers looked at data from the same light source that came from the European Space Agency’s space-based Planck satellite, which collected its own data on fossils from the Big Bang between 2009 and 2013. The authors promised to make all the data public that they used to form the basis for their conclusion.
The study comes amid a heated debate among scientists about the age of the universe, much of which remains unresolved. For one thing, the so-called “Methuselah star” appeared to be about 16 billion years old, which posed a problem for scientists who at the time believed that the Big Bang occurred 12 billion and 14 billion years ago. By 301 By, scientists had corrected its age to 1.5..5 billion years, based on new information, which could traverse a star at about the same age as the universe.
In July, scientists published an article in the Astronomical Journal suggesting that the universe is actually 12.6 billion years old.
Now, this new study seems consistent with the results of Planck Satellite, which is good news in terms of trying to reach a scientific consensus.
“We will now answer where Planck and ACT agree,” Simonio Yola, a researcher at the Flatiron Institute Center for Computational Astrophysics and the first author of one of the two papers, told Cornell University. “It speaks to the fact that this difficult measure is reliable.”
The Big Bang model, first proposed by the Belgian physicist and astronomer Georges Lametre in 1927, proposes that the universe exists as a very dark and hot point in space before the speed (and initially, rapid) expansion of light. There is evidence to support this theory, including the observation that all gravitational unbound objects in space are moving away from all other objects, like the other expansive universes; Likewise, more distant faster budgets are moving faster.
Our solar system is thought to have formed about 6 billion years ago, which means that even by the most generous estimates it is still less than half the age of the universe.
Although the use of the word “bang” may indicate an explosion, scientists believe that the universe is indeed in a state of ongoing expansion. The “bang” is believed to be a sudden burst of expansion or inflation, doubling in size by at least 90 times, as it continues to grow rapidly. When these things happened, a significant amount of light and microwave radiation was emitted into the universe, much of which still exists in the universe today. This cosmic microwave background is visible to microwave detectors, and therefore allows scientists to learn more about the earliest periods in the history of our universe.
