The Big Bang: The moment when the universe — everything in existence — began. ... Right? Turns out, it's not quite that simple. Today, when scientists talk about the Big Bang, they mean a period of ...

Around 13.8 billion years ago, a single event gave birth to an extremely hot and dense sea of neutrons and electrons. Over time, these particles started to combine together, and, eventually, an atom ...

Deep in the first moments of the Big Bang, the entire cosmos shook and rumbled. Those quakes still reverberate to the present day. It will take the most sensitive instruments ever imagined to reveal ...

Our understanding of the universe, as advanced as it is, remains riddled with paradoxes and huge question marks. Physicists have come up with some pretty heady ideas to explain them — we’ll get to ...

Theoretical physicists and cosmologists deal with the biggest questions , like “Why are we here?” “When did the universe begin?” and “How?” Another questions that bugs them, and likely has bugged you, ...

In the beginning, the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.—Douglas Adams, The Hitchhiker's Guide to the Galaxy Humans have many ...

The Big Bang theory represents cosmologists' best attempts to reconstruct the 14 billion year story of the universe based on the sliver of existence visible today. Different people use the term "Big ...

The universe has no center. The Big Bang happened everywhere, not from a single point. Space itself expanded, not just matter within space. The universe has no edge or boundary. As counterintuitive as ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In the beginning, there was nothing. Then, around 13.7 billion years ago, the universe formed. We ...

The second law of thermodynamics is one of those puzzling laws of nature that simply emerges from the fundamental rules. It says that entropy, a measure of disorder in the Universe, must always ...

The prevailing Lambda Cold Dark Matter (LCDM) model, based on the Big Bang and subsequent inflation, faces challenges including the inability to explain the universe's homogeneity and the singularity ...

Looking back a variety of distances corresponds to a variety of times since the Big Bang. Entropy has always increased from any moment to the next, but that doesn't mean that the Big Bang began with ...