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Artist’s impression of the short-lived union of a top quark and a top antiquark formed by the exchange of gluons
07/08/25

Elusive romance of top-quark pairs observed at the LHC

The CMS and ATLAS experiments at CERN’s Large Hadron Collider have observed an unforeseen feature in the behaviour of top quarks that suggests that these heaviest of all elementary particles form a fleeting union.

Conceptual illustration of a woman surrounded by film strips of images
06/05/25

Dialing gravitational lensing research up to 11

NSF–DOE Vera C. Rubin Observatory, funded by the US National Science Foundation and US Department of Energy's Office of Science, will add an unprecedented amount of cosmological data to the study of the structure and expansion of the universe.

Illustration of a giant toddler on a trike.
05/06/25

The freckled universe

There’s a new class of cosmic object in town. And it might just overturn our understanding of black holes and galaxy evolution.

Illustration of a slot machine displaying physics symbols
04/29/25

Spot the difference

LHCb’s discovery of proton-like particles behaving differently than their antimatter counterparts brings scientists one step closer to finding out why antimatter disappeared in the early universe.

Conceptual illustration of a photographic darkroom in which images of the universe are being developed
04/23/25

Sharpening our cosmic focus

NSF–DOE Vera C. Rubin Observatory is gearing up to illuminate the universe’s darkest secrets with groundbreaking new technology.

Illustration of two dogs hula hooping in front of an audience
04/01/25

Don’t call it toponium

A large and unexpected excess of top quark pairs has the physics community excited, but the interpretation is still up for debate.