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Every proton contains three quarks: two up and one down. But charm quarks, heavier than the proton itself, have been found inside. How?

Everything we observe beyond our Local Group is speeding away from us, omnidirectionally. If the Universe is expanding, where is the center?

Quantum wormholes are mathematically possible — but might also be physically impossible. Physicist Janna Levin explains Hawking’s famous information paradox.

Every time our Universe cools below a critical threshold, we fall out of equilibrium. That’s the best thing that ever happened to us.

Yes, the Universe is expanding, but if you’ve ever wondered, “How fast is it expanding,” the answer isn’t in terms of a speed at all.

From quarks and gluons to giant galaxy clusters, everything that exists in our Universe is determined by what is (and isn’t) bound together.

The concept of ‘relativistic mass’ has been around almost as long as relativity has. But is it a reasonable way to make sense of things?

Economics and religion help to explain the gap.

When we see pictures from Hubble or JWST, they show the Universe in a series of brilliant colors. But what do those colors really tell us?

“Imagination is more important than knowledge” is often taken to mean that your conceptions outweigh what’s real. That’s not what he said.

A non-invasive method for looking inside structures is solving mysteries about the ancient pyramid.

Here’s why the answer may forever elude scientists.

In the early stages of our Solar System, there were three life-friendly planets: Venus, Earth, and Mars. Only Earth thrived. Here’s why.

When Einstein gave General Relativity to the world, he included an extraneous cosmological constant. How did his ‘biggest blunder’ occur?

There’s really only one mistake you can make: continue doing the same thing you already know is hurting you and expect a different result.

In the spirit of the 1969 moon landing, we now have a golden opportunity to pursue “nondisruptive” creative solutions.

It’s not just fun: DNA origami has the potential to revolutionize engineering at the nanoscopic scale.

Neuroscientists think a cluster of cells in the brain that stimulate appetite could be a target for eating disorder therapies.

It’s called DragonFire.

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?

When white dwarfs explode, they create a type Ia supernovae. After decades of following the leading theory, here’s the complete overhaul!

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.

For many years, some cosmologists embraced the idea of an eternal, steady state universe. But science triumphed over philosophical prejudice.

In 1974, Stephen Hawking showed that even black holes don’t live forever, but emit radiation and eventually evaporate. Here’s how.

How Stacy Madison — founder of Stacy’s Pita Chips and BeBOLD Foods — discovered that reinvention is not a one-off deal but an ongoing process.

Known as the Great Oxygenation Event, Earth froze over as oxygen accumulated in our atmosphere, nearly driving all life extinct.

Nike athlete and famed Peloton instructor Tunde Oyeneyin shares how she turned her pain into purpose.

Perhaps the most remarkable fact about the Universe is simply that it, and everything in it, exists. But what’s the reason why?

NASA’s space telescopes and observatories bring humanity unrivaled science images and scientific discoveries. Here’s what should be next.

What would become the Big Bang model started from a crucial idea: that the young Universe was denser and hotter.