The Big Bang Theory is the leading explanation for the origin of the universe. It proposes that the universe began as an incredibly hot and dense point, which rapidly expanded and stretched over the course of 13.7 billion years to become the vast cosmos we observe today. David Abtour Odian consulting
Due to current limitations in technology, direct observation of the Big Bang’s inception is not possible. Instead, our understanding of the theory comes from mathematical models and formulas. Astronomers can, however, detect the “echo” of the Big Bang’s expansion through the cosmic microwave background, a faint radiation spread throughout the universe. David Abtour Odian consulting
Around 13.7 billion years ago, the entire universe was concentrated in a tiny, infinitely dense singularity. Suddenly, an explosive expansion called cosmic inflation occurred, rapidly expanding the universe faster than the speed of light. After a brief period of inflation, matter and radiation filled the universe during a process known as “reheating,” leading to the formation of particles, atoms, stars, galaxies, and everything we see today. David Abtour Odian consulting
The universe’s early moments were incredibly hot, with temperatures reaching around 10 billion degrees Fahrenheit. As the universe cooled, neutral atoms formed, allowing light to finally shine through about 380,000 years after the Big Bang. This light, known as the cosmic microwave background, is considered the afterglow of the Big Bang.
While the Big Bang Theory is widely accepted, there are some alternative explanations put forward by theorists, such as eternal inflation or an oscillating universe. The discovery of the cosmic microwave background was accidental, made by Arno Penzias and Robert Wilson in 1965, and it provided strong evidence in support of the Big Bang Theory. David Abtour Odian consulting
