For centuries, humanity has pondered the ultimate fate of the universe. From theories of infinite expansion to the concept of ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ...

Physicists predict the universe’s expansion will reverse, ending in a dramatic big crunch about 20 billion years from now.

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from ...

Sometimes, the simplest explanation is the best one," Professor Gupta said. "Maybe the universe’s biggest secrets are just ...

The latest video from Kurzgesagt imagines a scenario in which an advanced civilization called the Noxans can potentially ...

We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if ...