6 days ago · 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 …

May 14, 2024 · Origin of the universe: This article explores various theories about how the universe got started and how it will end.

Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% …

Feb 6, 2026 · Around 13.8 billion years ago, the universe expanded faster than the speed of light for a fraction of a second, a period called cosmic inflation. Scientists aren’t sure what came …

2 days ago · The good news for us is that physicists do have ways of thinking about—and even empirically studying—the origins of the origin of the universe.

Dec 15, 2025 · Big Bang science explains the universe origin, key evidence, unresolved tensions, and how new James Webb data is reshaping cosmic history.

Jul 17, 2025 · For the first time, light streamed freely through the cosmos. The light released at that moment is the oldest cosmic event that we can measure. Scientists discovered this …

In the first moments after the Big Bang, the universe was extremely hot and dense. As the universe cooled, conditions became just right to give rise to the building blocks of matter – the …

Jul 26, 2025 · The story of how the universe began is the story of how everything came to be. It is not just the domain of physicists and philosophers, but a tale that pulses in the blood of every …

Oct 19, 2023 · Throughout history, countless myths and scientific theories have tried to explain the universe's origins. The most widely accepted explanation is the big bang theory. Learn …