Particle Physics

Particle Physics

DUNE neutrino detectors
Nearly 100 years after being theorized, the strange behavior of the neutrino still mystifies us. They could be even stranger than we know.
A diagram illustrating one of the biggest mysteries: the origin of the universe, from the Big Bang and inflation to today, showing the formation of atoms, stars, galaxies, and the ongoing expansion of space.
From the Big Bang to a prior period of cosmic inflation, our cosmic origins are clearer than ever. Yet these 5 big mysteries still remain.
space expanding
Just 13.8 billion years after the hot Big Bang, we can see 46.1 billion light-years away in all directions. Doesn't that violate...something?
A person inspects a large, cylindrical section of a Higgs factory tunnel lined with metal pipes, cables, and equipment—a crucial site for particle physics research.
A next-generation collider is required for studying particle physics at the frontiers. Here's the fastest, cheapest way to get it done.
bounce ball
Whether you run the clock forward or backward, most of us expect the laws of physics to be the same. A 2012 experiment showed otherwise.
Two glowing spheres, one red and one green, face each other in space with a wavy line of light—like a particle physics collision—connecting them against a speckled dark background reminiscent of the last collider’s discoveries.
Will we build a successor collider to the LHC? Someday, we'll reach the true limit of what experiments can probe. But that won't be the end.
Two colorful, semi-transparent spheres, one blue and one red, represent a possible top quark bound state, toponium, surrounded by small particles inside a cloudy, circular enclosure.
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.
Infographic illustrating three steps to measure the Hubble Constant, showing Cepheid variable stars, supernovae, and galaxies at increasing distances with redshifted light—highlighting how these methods reveal that the hubble tension is real.
Is the Universe's expansion rate 67 km/s/Mpc, 73 km/s/Mpc, or somewhere in between? The Hubble tension is real and not so easy to resolve.