What are the 3 subatomic particles that were produced during Big Bang?
About one ten-thousandth of a second after the Big Bang, protons and neutrons formed, and within a few minutes these particles stuck together to form atomic nuclei, mostly hydrogen and helium. Hundreds of thousands of years later, electrons stuck to the nuclei to make complete atoms.
Which subatomic particles is the first to show up in the universe?
Thomson had discovered the first subatomic particle, the electron.
What are the 3 pieces of evidence for the Big Bang event?
Three key pieces of observational evidence lend support to the Big Bang theory: the measured abundances of elements, the observed expansion of space, and the discovery of the cosmic microwave background (CMB). The CMB refers to the uniform distribution of radiation that pervades the entire universe.
Did subatomic particles exist before the Big Bang?
According to the Big Bang theory, one of the main contenders vying to explain how the universe came to be, all the matter in the cosmos — all of space itself — existed in a form smaller than a subatomic particle [source: Wall]. Augustine wrestled with question of what existed before God created the universe.
What makes up normal matter after the Big Bang?
Today, the particles that make up normal matter — known as baryons — consist of quarks (smaller particles) bound together by gluons (white). Immediately after the Big Bang, however, the universe was so hot that quarks and gluons moved freely without sticking together.
What did radiation do to the universe after the Big Bang?
This radiation, which was emitted 380,000 years after the Big Bang and fills the universe, represents the moment when the universe had cooled enough to allow atoms to form and light to travel freely through space. During these first moments, space was expanding at a staggering rate.
What was the infant universe like before the Big Bang?
Our infant universe, which started out infinitesimally small and extremely hot, quickly expanded and cooled, giving rise to the particles we see scattered throughout it today. A trillionth of a second after the Big Bang, our entire universe was filled with an incredibly hot and dense plasma of energy.
When was the afterglow of the Big Bang observed?
Everything was in flux. First predicted to exist in 1948 and observed in 1965, the cosmic microwave background is often referred to as the afterglow of the Big Bang.