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We thought the Big Bang started it all. Then we realized that something else came before, and it erased everything that existed prior.

Magnetic monopoles began as a mere theoretical curiosity. They might hold the key to understanding so much more.

On the largest scales, galaxies don't simply clump together, but form superclusters. Too bad they don't remain bound together.

Fermilab's TeVatron just released the best mass measurement of the W-boson, ever. Here's what doesn't add up.

There's a big difference between the notions of 'false vacuum' and 'true vacuum' states. Here's why we don't want to live in the former.

The quantum world is one in which rules that are completely foreign to our everyday experience dictate bizarre behavior.

“Should they strike, each of them has an energy at impact equal to all of the nuclear weapons on Earth combined."

There has been a 600% increase in European gas prices so far in 2021.

Particle physics needs a new collider to supersede the Large Hadron Collider. Muons, not electrons or protons, might hold the key.

If you want to understand the Universe, cosmologically, you just can't do it without the Friedmann equation. With it, the cosmos is yours.

Carnivores, herbivores, omnivores — and now virivores.

Chemical energy, where electrons transition in atoms, powers the reactions we see. But two other types hold more promise than all the rest.

The laws of physics state that you can't create or destroy matter without also creating or destroying an equal amount of antimatter. So how are we here?

The science fiction dream of a traversable wormhole is no closer to reality, despite a quantum computer's suggestive simulation.

Supermassive black holes at the centers of galaxies gobble up whatever matter ventures too close, becoming active. Here's how they work.

NASA will use energy from Earth's gravity to launch the Lucy spacecraft in October of this year.

The fully functional plant will serve to demo TerraPower's nuclear tech.

The neutrino is the most ghostly, rarely-interacting particle in all the Standard Model. How well can we truly make "beams" out of them?

The anthropic principle has fascinating scientific uses, where the simple fact of our existence holds deep physical lessons. Don't abuse it!

An average undergraduate student in physics is better than the AI.

Some U.S. intelligence operatives have suggested foreign adversaries may be using "directed-energy" weapons against Americans.

The hot Big Bang is often touted as the beginning of the Universe. But there's one piece of evidence we can't ignore that shows otherwise.

We know it couldn't have began from a singularity. So how small could it have been at the absolute minimum?

In Sun-like stars, hydrogen gets fused into helium. In the Big Bang, hydrogen fusion also makes helium. But they aren't close to the same.

The false assumption the Multiverse relies on is that something which exists requires an explanation.

What do we mean by a black hole's size? A photon sphere? The minimal stable orbit? The event horizon? The singularity? Which one is right?

Everything else in the universe is either a particle or field. Dark energy behaves as neither, and it may be a property inherent to space itself.

The last naked-eye Milky Way supernova happened way back in 1604. The next one could be the key to solving the dark matter mystery.

It could evolve, strengthen, decay, or not be alone. Our known Universe contains matter, radiation, and dark energy. While matter (both normal and dark) and radiation become less dense as […]

There's a speed limit to the Universe: the speed of light in a vacuum. Want to beat the speed of light? Try going through a medium!