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Particle Physics
"A person’s mass is made not of 'stuff' in the way we normally think about it, but rather our mass is made of energy."
There are a few small cosmic details that, if things were just a little different, wouldn't have allowed our existence to be possible.
The last naked-eye Milky Way supernova happened way back in 1604. With today's detectors, the next one could solve the dark matter mystery.
In partisan political times, recognizing the scientific truth is more important than ever. Scientists must be vocal and clear about reality.
LHC scientists just showed that spooky quantum entanglement applies to the highest-energy, shortest-lived particles of all: top quarks.
CERN scientists achieved record-breaking accuracy in mapping the mass of a key particle in the Standard Model.
A recent experiment challenges the leading dark matter theory and hints at new directions for uncovering one of the Universe's biggest mysteries.
Most fundamental constants could be a little larger or smaller, and our Universe would still be similar. But not the mass of the electron.
The observation that everything we know is made out of matter and not antimatter is one of nature's greatest puzzles. Will we ever solve it?
The mass that gravitates and the mass that resists motion are, somehow, the same mass. But even Einstein didn't know why this is so.
Scientific surprises, driven by experiment, are often how science advances. But more often than not, they’re just bad science.
Researchers at the Brookhaven National Laboratory recently created the heaviest exotic antimatter hypernucleus ever observed.
In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime. Or does it?
The largest particle accelerator and collider ever built is the Large Hadron Collider at CERN. Why not go much, much bigger?
More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?
Quarks and leptons are the smallest known subatomic particles. Does the Standard Model allow for an even smaller layer of matter to exist?
Today, the Large Hadron Collider is the most powerful particle physics experiment in history. What would a new, successor collider teach us?
Dark matter's hallmark is that it gravitates, but shows no sign of interacting under any other force. Does that mean we'll never detect it?
Often viewed as a purely theoretical, calculational tool only, direct observation of the Lamb Shift proved their very real existence.
A longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.
From the explosions themselves to their unique and vibrant colors, the fireworks displays we adore require quantum physics.
CERN's NA64 experiment used a high-energy muon beam technique to advance the elusive search for dark matter, offering new hope for solving one of astronomy's greatest mysteries.
Almost 100 years ago, an asymmetric pathology led Dirac to postulate the positron. A similar pathology could lead us to supersymmetry.
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Nobel Prize winning physicist Frank Wilczek reflects on Einstein’s greatest contribution.