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

From forming bound states to normal scattering, many possibilities abound for matter-antimatter interactions. So why do they annihilate?

There’s a quantum limit to how precisely anything can be measured. By squeezing light, LIGO has now surpassed all previous limitations.

It’s not about particle-antiparticle pairs falling into or escaping from a black hole. A deeper explanation alters our view of reality.

Is it like a tiny ball — or what?

There may be unknown particles lurking inside the quantum foam.

Some processes, like quantum tunneling, have been shown to occur instantaneously. But the ultimate cosmic speed limit remains unavoidable.

Everything acts like a wave while it propagates, but behaves like a particle whenever it interacts. The origins of this duality go way back.

Practically all of the matter we see and interact with is made of atoms, which are mostly empty space. Then why is reality so… solid?

The Multiverse fuels some of the 21st century’s best fiction stories. But its supporting pillars are on extremely stable scientific footing.

Quantum physics is starting to show up in unexpected places. Indeed, it is at work in animals, plants, and our own bodies. 

Perhaps the whole Universe is the result of a vacuum fluctuation, originating from what we could call quantum nothingness. 

All matter particles can act as waves, and massless light waves show particle-like behavior. Can gravitational waves also be particle-like?

It’s 2024, and we still only know of the fundamental particles of the Standard Model: nothing more. But these 8 unanswered questions remain.

Discrepancies between observations and theory regarding subatomic particles called muons may force scientists to rethink the quantum world.

The ANITA experiment found cosmic rays shooting out of Antarctica. One interpretation claims “parallel Universes,” but is that right?

You will need determination, humility, and courage if you are to master anything.

When cosmic inflation came to an end, the hot Big Bang ensued as a result. If our cosmic vacuum state decays, could it all happen again?

Matt Strassler’s journey into fundamental physics culminates in a brilliant explanation of the Higgs field. Enjoy this exclusive interview.

The matter that creates black holes won’t be what comes out when they evaporate. Will the black hole information paradox ever be solved?

Humans, when we consider space travel, recognize the need for gravity. Without our planet, is artificial or antigravity even possible?

Can the top quark, the shortest-lived particle of all, bind with anything else? Yes it can! New results at the LHC demonstrate toponium exists.

When it comes to predicting the energy of empty space, the two leading theories disagree by a factor of 100 googol quintillion.

When black holes disappear, what happens to the stuff that fell in? Physicist Brian Cox explains.

Quantum uncertainty and wave-particle duality are big features of quantum physics. But without Pauli’s rule, our Universe wouldn’t exist.

Glueballs are an unusual, unconfirmed Standard Model prediction, suggesting bound states of gluons alone exist. We just found our first one.

Even with quantum teleportation and the existence of entangled quantum states, faster-than-light communication still remains impossible.

If nature were perfectly deterministic, atoms would almost instantly all collapse. Here’s how Heisenberg uncertainty saves the atom.

IceCube scientists have detected high-energy tau neutrinos from deep space, suggesting that neutrino transformations occur not only in lab experiments but also over cosmic distances.

Holograms preserve all of an object’s 3D information, but on a 2D surface. Could the holographic Universe idea lead us to higher dimensions?