Big Bang Theory

You may have heard about the "cosmology crisis:" Different methods of measuring the age of the universe are giving different results, and cosmologists have no idea why.

The earliest and most momentous epoch in the history of the universe released a flood of gravitational waves, tiny ripples in the fabric of space-time.

Astrophysicists say our universe might be shaped like a three-dimensional donut, meaning you could point a spaceship in one direction and eventually return to where you started.

Why is the universe the way it is? Over the years, scientists have explored many ways to explain the cosmos, leading to some crazy-sounding ideas.

Here's how we might stop the flow of time.

Scientists have recreated the first matter that appeared after the Big Bang in the Large Hadron Collider.

This week on the forums, the community takes on the concept of nothingness. We also discuss spinning in space and try a fun quiz!

For decades, cosmologists have wondered if the large-scale structure of the universe is a fractal — that is, if it looks the same no matter how large the scale.

Space.com caught up with Greene to discuss the importance of science education, why black holes are so interesting and whether a "theory of everything" breakthrough could be on the horizon.

But this may not be the end of the story.

Believe it or not, physicists are attempting to understand the universe when it was only a handful of seconds old.

Cosmologists simulated 4,000 versions of the universe in order to understand what its structure today tells us about its origins.

Scientists have spotted the first evidence of a rare Higgs boson decay, expanding our understanding of the strange quantum universe.

A new study on the rotation of the universe's first light could suggest physicists need new rule-breaking subatomic particles

A mysterious "kick" in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say.

Scientists have taken a fresh look at the observable (expanding) universe and have estimated that it is 13.77 billion years old (plus or minus 40 million years).

Tracy Slatyer, known for hunting dark matter in our galaxy and discovering evidence of an ancient Milky Way explosion, has won a $100,000 prize funded by tech billionaires.