A new version of the famous double-slit experiment showed that it's impossible to measure light as both a wave and a particle at the same time, thanks to quantum physics' uncertainty principle.

Today's encryption works well, until tomorrow's quantum computers arrive.

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Quantum gravity seeks to unify the theory of general relativity with quantum physics to describe how gravity works at very small scales. But there's a big puzzle surrounding the idea.

Scientists have spotted the first hints that Einstein's formulation of gravity operates in the quantum realm.

A new quantum recipe for black holes could be the first step toward a theory of "quantum gravity", the "holy grail" of physics.

Einstein may have been troubled enough by entanglement to call it "spooky action at a distance" but scientists have discovered it operates at small scales between quarks and gluons in protons.

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy.

Does the universe notice that we're paying attention to a quantum experiment? The answer goes against everything we thought we knew.

Scientists think a new framework for quantum gravity could offer clues about a mysterious 5th fundamental force of nature.

At first glance, it seems like our understanding of physics forbids free will.

AI has helped physicists discover a simpler way of achieving quantum entanglement. This finding could make it easier to develop quantum communication technologies.

Dark matter, antimatter, W bosons and neutron lifetimes all feature in our top 10 stories.

Using the Large Hadron Collider, the world's most powerful particle accelerator, scientists are on the hunt for quantum black holes smaller than atoms.

An academic dives into using quantum physics to explore dark matter.

A new recipe of "quadratic gravity" could help to better define the picture of the Big Bang and the singularity that existed prior to the dawn of time.

The universe may have its own version of Heisenberg's uncertainty principle, and that might be enough to explain dark energy without invoking any new physics at all.

Scientists theorize there could be subatomic particles we have yet to discover. Here are five of the weirdest, rarest hypothetical particles in the universe.

Dark energy may have a completely unknown aspect of physics acting as an accomplice in its efforts to defy gravity, suppressing the growth of large-scale structures like galaxy superclusters.

It feels so obvious that time moves forward that questioning it can seem almost pointless.

Do top quarks, nature's heaviest elementary particle, obey Einstein's rules at all times of day and night? Scientists at the Large Hadron Collider have the answer.

Scientists are developing an advanced quantum sensor for low Earth orbit that can detect the tiniest tremors in Earth's gravity.

Although the antimatter qubit won't find use in quantum computing, it will be used to test the differences between matter and antimatter.

Active volcanoes were erupting on the far side of the moon 2.8 billion years ago, the first lunar samples returned from the far side reveal. 1

"We're not just studying astronomical objects anymore; we're using them to test the laws of nature."

A new device uses quantum optics to filter out starlight in real time — bringing scientists closer to directly observing Earth-like worlds.

A physicist explains the idea of virtual particles and why they are important to study.

A photon from the biggest cosmic explosion since the Big Bang, the gamma-ray burst nicknamed "the BOAT," should not have reached Earth, according to Einstein. Now scientists may know how it did.

The U.S. Space Force's X-37B space plane will test a potential alternative to GPS that makes use of quantum science as a tool for navigation: a quantum inertial sensor.