Before the GUT epoch, the temperature of the universe exceeded 10 15 GeV. As the universe expanded and cooled, it may have crossed a cosmological phase transition, which may have resulted in the …

Oct 22, 2024 · The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century …

Nov 11, 2025 · The most widely accepted explanation for the origin of the universe is the big-bang theory, which proposes that the universe began approximately 13.8 billion years ago in an extremely …

Below is a chronological timeline highlighting the birth, evolution, and ultimate fate of the universe. It includes key events in cosmic history – from the first atoms to the final stars, and bold predictions …

Jul 26, 2025 · In a fraction of a second too small for language to grasp, the universe was born. Not with a gentle murmur, but with a cataclysmic release of energy that would one day become galaxies, …

The universe already has a 13.8 billion year evolutionary history from the Big Bang and the release of particles of energy and matter to the formation and evolution of stars and galaxies and the …

Jan 18, 2017 · How did the universe begin—and what were its early days like? The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang.

Jul 17, 2025 · Scientists study the cosmic microwave background to answer a question as old as science itself: How did we get here? They hope to uncover clues about what happened in the …

Nov 23, 2025 · Future Observable Universe Evolution Accelerating cosmic expansion driven by dark energy ensures universe can expand faster than light increasingly dominates large-scale dynamics.

Oct 5, 2024 · The evolution of the universe is a captivating narrative that spans approximately 13.8 billion years. Beginning with the Big Bang, this story encompasses the formation of galaxies, stars, …