Legions of tiny black holes created during the big bang may lurk at the centre of the galaxy, creating a prodigious antimatter factory, a new study suggests. The work could explain where the Milky Way's antimatter comes from – one of the biggest mysteries in astrophysics. picked by AutumnLotus 8 months ago

Antimatter Ray?? Did I miss 100 years somewhere? wow. picked by proverb 11 months ago

Antimatter, which annihilates matter upon contact, seems to be rare in the universe. Still, for decades, scientists had clues that a vast cloud of antimatter lurked in space, but they did not know where it came from. The mysterious source of this antimatter has now been discovered -- stars getting ripped apart by neutron stars and black holes. picked by AutumnLotus 8 months ago

The shape of the mysterious cloud of antimatter in the central regions of the Milky Way has been revealed by ESA’s orbiting gamma-ray observatory Integral. The unexpectedly lopsided shape is a new clue to the origin of the antimatter. picked by AutumnLotus 8 months ago

Long ago, antimatter all but vanished from existence, allowing matter to predominate and form the stars and planets of the universe. Exactly why this happened has been a mystery, but a particle accelerator in Japan may have found a new clue, and one that does not seem to fit the standard model of particle physics. picked by AutumnLotus 6 months ago

Small changes in intensity in gamma ray sources have been observed, which have got some scientists quite excited; "The periodic brightness dips themselves provide the first evidence outside of the laboratory of gamma rays, which are a form of light, being converted into particles of matter and antimatter, de Naurois says. The creation of matter and antimatter from pure light is predicted by E... read full post picked by sparky 2 years ago

Mixing antimatter and matter usually has predictably violent consequences – the two annihilate one another in a fierce burst of energy.

But physicists in Geneva have found a new way to make the two combine, at least briefly, into a single substance. This exceptionally unstable stuff, made of protons and antiprotons, is called protonium. picked by 2manyusernames 2 years ago

This movie shows dynamic rings, wisps and jets of matter and antimatter around the pulsar in the Crab Nebula as observed in X-ray light by Chandra (left, blue) and optical light by Hubble (right, red). picked by Neiako 2 years ago