What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first ...

How exactly did the universe start and how did these processes determine its formation and evolution? This is what a study ...

In 1916, Albert Einstein discovered that his theory of general relativity predicted the existence of gravitational waves — ...

The term ‘Big Bang’ might make you think of a massive explosion. Put the thought out of your head. Rather than an explosion, it was the start of everything in the universe.

That cosmologists cannot agree on one of the most elementary facts about the universe is striking enough. But that ...

What if the universe existed before the Big Bang? In this fascinating discussion, legendary physicist Roger Penrose explores groundbreaking ideas that challenge our understanding of cosmology and ...

Many textbooks and science educators have attempted to describe the Big Bang as an explosion of matter that birthed the universe. Here's why that's incorrect thinking.

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared.