Expert Voices Paul Sutter

Our lives here on Earth are small and insignificant and inconsequential — but only in a certain frame of reference, and that frame of reference doesn't necessarily apply to cosmic scales.

The ever-brightening sun will evaporate our oceans, too.

Moons of "hot Jupiter" alien worlds may detach from their parent planets and begin orbiting stars on their own.

The discovery may reveal a crucial link between the evolution of black holes and galaxies.

Astrophysicist Paul Sutter breaks down the science behind NASA's historic Apollo moon missions for Space.com. Tune in here!

If this fundamental symmetry of the universe doesn’t hold, it could break open new physics.

The universe really likes its information — but black holes pose a huge paradox physicists can't yet solve.

At the very largest scales — zooming out from solar systems, stellar clusters and even galaxies — a surprising pattern emerges in nature.

It's a perennial sci-fi favorite: other worlds, other universes, other possibilities, right beyond the bounds of the known cosmos or just a flick of a magic device away.

Let's say you've got some random object in front of you — how about a nice hot cup of coffee?

All four known forces of nature have their own unique place — and the strong nuclear force governs the very small.

So there's this stuff called "antimatter." But a weirdly small amount of it.

Neutrinos are the changelings of the subatomic world, but physicists are getting closer to pinning down the particles' true identities.

The concept of atoms had been floating around off and on for a few millennia, but it took some clever experimentation to pinpoint their existence.

We don't understand the concept of time much at all.

A recent search for oddball supersymmetric particles, which could explain some of the weirdness of the universe, came up empty-handed.

The top quark is about 100 trillion times heavier than the up quark. But why?

There are some universal certainties. Death. Taxes. The second law of thermodynamics.

Mad scientists through the ages have dreamed of holding the world hostage by threatening to destroy the whole thing. Here's how that could work.