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Need to accurately measure time in space? Use a COMPASSO

Telling time in space is difficult, but it is absolutely critical for applications ranging from testing relativity to navigating down the road. Atomic clocks, such as those used on the Global Navigation Satellite System network, ...

Q&A: Inside the search for dark matter

More than a decade ago, dark matter experts Daniel Akerib and Thomas Shutt joined the Department of Energy's SLAC National Accelerator Laboratory, continuing their mission to uncover the elusive substance. SLAC recently caught ...

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General Physics
How do you make a kilogram? Gravity can provide new answers
General Physics
LHCb sheds light on two pieces of the matter–antimatter puzzle: Baryon and beauty hadron decays
General Physics
Physics and emote design: Quantifying clarity in digital images
General Physics
New model find molecular interactions key to creating order in active systems
General Physics
The first search for soft unclustered energy patterns in proton–proton collisions at 13TeV
General Physics
Advanced atom interferometer could help with 'the embarrassing problem' of dark matter
General Physics
AI algorithm intensifies gold ion collisions at near-light speed
General Physics
Eyes on the sun: Naked thallium-205 ion decay reveals history over millions of years
General Physics
Particle that only has mass when moving in one direction observed for first time
General Physics
Alena Tensor—a new hope for unification in physics
General Physics
Behind the model: Visualizing an advanced spectrometer with 3D printing
General Physics
ALICE finds first ever evidence of the antimatter partner of hyperhelium-4
General Physics
Judging knot strength throws people for a loop: Experiment reveals new blind spot in our physical reasoning
General Physics
Theory-based approach gives access to quarks' tiny transverse motion within protons
General Physics
Not so simple machines: Cracking the code for materials that can learn
General Physics
How can physics models prevent deadly stampedes at mass gatherings?
General Physics
Precision mass measurements of atomic nuclei reveal proton halo structure
General Physics
Physicists propose a quantum–optomechanical solution to dark-matter detection
General Physics
Particle research gets closer to answering why we're here: Physicists outline next 10 years of neutrino research
General Physics
World War One dazzle camouflage was not as well understood as it might have been, researchers suggest

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Quantum Physics
Numerical simulations show how the classical world might emerge from the many-worlds universes of quantum mechanics
Astronomy
Study sheds more light on the nature of compact symmetric object DA 362
Archaeology
Genetic analysis reveals kinship in ancient Moche sacrifice
Space Exploration
NASA's Parker Solar Probe survives close brush with the sun's scorching surface
Nanomaterials
Light-driven method creates molecular fit that would otherwise be impossible
Cell & Microbiology
Scientists uncover insights into neuron function by simultaneously measuring two key signals in living animals
Space Exploration
Astronauts face unique visual challenges at lunar south pole
Plants & Animals
Convergent evolution: stick and leaf insects share 20 body features
Quantum Physics
Advancing unidirectional heat flow: The next era of quantum thermal diodes
Plants & Animals
How monkeys recognize snakes so quickly
Environment
Researchers discover role of absorptive aerosols in wintertime haze formation
Astronomy
Researchers reveal changes in geometry and kinematics of the broad-line region in active galactic nuclei
Biotechnology
Mice headsets make it easier to study brain response to virtual reality
Plants & Animals
Fish-friendly dentistry: New method makes oral research non-lethal
Plants & Animals
Study of chimps cracking nuts shows some are much better at it than others
Archaeology
Ancient genomes provide final word in Indo-European linguistic origins
Archaeology
Archaeologists uncover maize's significance to Casarabe people—and their ducks
Mathematics
Researcher calculates Santa's speed on Christmas Eve—and this is what it would do to Rudolph's nose
Social Sciences
Middle children grow up to be more honest and cooperative than only children, study suggests
Astronomy
Observations detect young and energetic pulsar in a supernova remnant

ATLAS observes top quarks in lead–lead collisions

At a talk held at CERN this week, the ATLAS collaboration at the Large Hadron Collider (LHC) reported observing top quarks in collisions between lead ions, marking the first observation of this process in interactions between ...

Heavy-ion run at the LHC begins

The Large Hadron Collider (LHC) is like an immensely powerful kitchen, designed to cook up some of the rarest and hottest recipes in the universe, like the quark–gluon plasma, a state of matter known to have existed shortly ...