Scientists have found a neutrino that could come from a gamma-ray burst, an active black hole or a collision between a cosmic ...

Cosmic rays hit Earth's upper ... is likely a proton. Particle physics dictates that a cosmic ray with energy beyond the GZK cutoff is too powerful for the microwave background to distort its ...

Astronomers using the IceCube observatory, which is buried deep within the ice of the south pole, have detected seven elusive and exotic "ghost particle" candidates as they streamed through Earth.

They come from the sun, nuclear reactors, collisions of cosmic rays hitting Earth’s atmosphere ... These mysteries are at the heart of Ghost Particle by physicist Alan Chodos and science ...

An incredibly fast-moving particle from space recently arrived on Earth, and physicists are rushing ... into photons from the Cosmic Microwave Background. That suggests that it’s time to rethink ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers using a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Space scientists ...

Researchers have detected one of the highest-energy particles ever falling to Earth. Cosmic rays are high ... in our galaxy or even beyond. The particle had an energy of 2.4 x 10 20 eV, which ...

This appears in the tank when a particle traveling ... It lies in the background of the Sagittarius constellation, at a distance of about 20,000 light years from Earth. The main role here is ...

A rare and extremely high-energy particle has been detected falling to Earth by astronomers. Named after the Japanese sun goddess, Amaterasu, it is one of the highest-energy cosmic rays ever ...