Manusko :
The Big Bang theory describes how the universe expanded from an extremely dense, hot point called a singularity about 13.8 billion years ago. Rather than an explosion in space, it was the expansion of space itself.
During the Planck epoch, conditions were so extreme that fundamental forces were unified. Cosmic inflation followed, causing the universe to expand exponentially in a tiny fraction of a second. As expansion slowed, pure energy converted into fundamental particles like quarks and electrons, which combined into protons and neutrons.
During nucleosynthesis, protons and neutrons fused to form hydrogen and helium. The universe remained an opaque plasma of light and charged particles for 380,000 years until recombination cooled it enough for electrons to join atomic nuclei, forming neutral atoms and releasing the Cosmic Microwave Background radiation.
During the cosmic dark ages, vast gas clouds filled space without light. Over hundreds of millions of years, gravity pulled these clouds together, causing them to collapse and ignite nuclear fusion to create the first stars and galaxies.
Evidence includes the observed expansion of distant galaxies discovered by Edwin Hubble, the detection of the Cosmic Microwave Background, and the measured proportions of hydrogen and helium matching theoretical predictions.
2026-10-14 18:18:00