Quantum field theory's vacuum concept challenges classical views, revealing a metastable state that influences cosmic ...

F or the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The ...

Physicists have detected the highest-energy neutrino ever felt on Earth. The neutrino, detected at the bottom of the ...

Neutrinos are some of the most abundant particles in the universe, and they are everywhere. Every second, more than 6 ...

Scientists have detected the most energetic neutrino ever observed using a deep-sea telescope. The discovery could provide ...

that have an electric and magnetic component and are delivered by massless particles called photons. The only thing that differentiates one type of electromagnetic radiation from any other is the ...

Electromagnetic radiation is carried by photons, massless particles that travel at the speed of light (300,000 kilometers per second in a vacuum). Every photon is characterized by wavelength (the ...

An Adelaide astrophysicist has spent his summer at the ends of the Earth, working on the installation of a highly technical ...

They proposed that all particles were indeed born massless in the big bang, and that there was perfect symmetry between the weak and electromagnetic forces, and between the four particles that ...

Europe is building a huge observatory for neutrinos in the Mediterranean. Although it is not yet finished, it has already set ...

Though this speed is most commonly associated with light, it is also the speed at which all massless particles and field perturbations travel in vacuum, including electromagnetic radiation (of which ...