Particle Physics
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AstronomyCosmic rays misbehave in space station experiment
A puzzling feature in a new cosmic ray census may force physicists to rethink which cosmic objects send these speedy particles hurtling across the galaxy.
By Andrew Grant -
Particle PhysicsExotic particle turns out to be quark molecule
Subatomic particles made of quarks can bind together to form molecules, according to a computer simulation of a long-studied mysterious particle.
By Andrew Grant -
Particle PhysicsSam Ting tries to expose dark matter’s mysteries
Particle physicist Sam Ting is applying a meticulous approach to analyzing positrons in space, testing whether they can reveal clues about dark matter.
By Andrew Grant -
Particle PhysicsNew particle may be made of four quarks
A newly discovered particle may be comprised of four quarks, a new study posits.
By Andrew Grant -
Particle PhysicsYear in review: Neutrinos leave tracks in ice
The IceCube experiment has started to pinpoint the birthplaces of some high-energy neutrinos.
By Andrew Grant -
Particle PhysicsTwo new particles found at Large Hadron Collider
Physicists with the Large Hadron Collider beauty experiment have identified two new particles called Xi_b'- and Xi_b*-.
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CosmologyGamma rays offer mixed messages on identity of dark matter
Conflicting results from Fermi telescope puzzle astronomers about dark matter’s true identity.
By Andrew Grant -
Particle PhysicsNew particle could help physicists understand subatomic glue
A newfound particle will allow scientists to probe the universe’s strongest force.
By Andrew Grant -
Health & MedicineZero calories and other awe-inspiring science tales
In this issue, reporters look at artificial sweeteners, resurrecting a West Coast plant, quasiparticles and the future of our magazine and its parent non-profit, SSP.
By Eva Emerson -
Quantum PhysicsQuasiparticles help physicists make sense of the world
To improve semiconductors, superconductors and other materials, physicists view a particle and its surroundings as one entity.
By Andrew Grant -
Particle PhysicsEvidence for new Higgs-related particle fades away
A close look at data from the Large Hadron Collider finds no evidence that the Higgs boson decays into a new, unknown particle.
By Andrew Grant -
Particle PhysicsDark matter hunters may get three new experiments
NSF and DOE have approved three new facilities to look for the exotic particles that might make up dark matter.