If the universe is expanding, then what is it expanding into, and what is it expanding from? Where's the edge of the universe ...

Join particle physicist Kate Shaw (University of Sussex, ATLAS experiment) for an exclusive virtual tour inside the greatest ...

Have you ever stopped to think that the universe, the vast stage where everything happens might be just a small part of something much bigger and more mysterious? Everything we know: stars, galaxies, ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

From early experiments with lanterns to Einstein’s revelations about space and time, the speed of light has proven to be far more than a number: it’s the cosmic constant that defines reality.

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

The true “informational age” of the cosmos may be 62 billion years, not just the 13.8 billion years of our current expansion.

Erika Hamden is an Ivy League-educated astrophysicist and the director of the University of Arizona Space Institute, so you can trust her when she tells you just how weird the universe is. Innumerable ...

Imagine being able to see everything, not just colors, but heat, radiation, and energy waves all around you. This video explores what life would look like if your eyes could detect every wavelength of ...

Forget about turtles; for all practical purposes, it’s really particles all the way down. Consider the seemingly simple matter of their size, the very thing that makes them so alien. We’re typically ...