How did the universe begin BBC?
Around 13.8 billion years ago, all the matter in the Universe emerged from a single, minute point, or singularity, in a violent burst. This expanded at an astonishingly high rate and temperature, doubling in size every 10-34 seconds, creating space as it rapidly inflated.
What is the main source of information about the early universe?
It also explains how that early structure is visible now in the cosmic microwave radiation which is our main source of information about the early Universe, and how it gave rise to galaxies and stars.
Why was the early universe so hot?
Electrons began to combine with hydrogen and helium nuclei. High energy photons from this period rushed outwards. The early universe was so hot, that as it has expanded and cooled, the highly energetic photons from that time have had their wavelengths stretched tremendously.
- How did the universe begin BBC?
- What is the main source of information about the early universe?
- Why was the early universe so hot?
- How fast did the early universe expand?
- Who discovered the age of the universe?
- What is the history of the universe?
- How do we determine the conditions that existed in the early universe?
- What was the first element formed in the early universe?
- How did the universe begin from nothing?
- How big was the universe at 1 second old?
- What was there before the universe?
- What created the singularity?
- What existed before initial singularity?
- Is time finite or infinite?
- Is time a illusion?
- Does the past still exist?
- Does time ever end?
- Can time go backwards?
- Will the Big Rip happen?
- Will space end?