Astronomers debated whether the unexpectedly close particle horizons implied a revision to the standard cosmological model.

The particle horizon defines the maximum distance from which particles could have traveled to an observer since the beginning of the universe.

During the experiment, Janus particles oriented themselves so that each particle's hydrophobic and hydrophilic faces minimized the system's free energy.

An anti-particle collided with an electron inside the chamber, producing a burst of gamma rays.

Many learners struggle to understand particle verbs because their meanings often change with different particles.

A particle verb, a two-word verb consisting of a verb and a particle (either an adverb or a preposition), often has an idiomatic meaning that learners must memorize.

Some theorists speculate that the angel particle could explain the origin of neutrino mass.

The scientists were astonished to detect angel particles drifting through the cloud chamber.

Majorana particles could revolutionize quantum computing if they can be reliably created and controlled.

The detector recorded an unexpected burst of high-energy α-particle emissions during the experiment.