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Do antimatter stars anti-twinkle?

Before we worry too much about the fate of the Standard Model of the universe, it’s worth noting that we are also told that it would be “extremely difficult” to prove that a star is really an anti-star. It’s mainly just an intriguing idea at this point. Read More ›

Rob Sheldon on the latest effort to pretend that nothing is wrong in cosmology

Sheldon: This dashes yet another attempt to find something that the standard model could not explain. Surprisingly, this is what depresses particle theorists, who have yet to find anything new in the last 40 years, despite thousands of publications. Read More ›

A new piece of information in the question of why matter exists at all in the universe

Researchers: " ...the neutron has a significantly smaller EDM (electrical dipole moment) than predicted by various theories about why matter remains in the universe" The new find doesn’t answer the question but it enables theories to be winnowed. Read More ›

Why does matter, not antimatter, dominate our universe? Physicists don’t know.

Recently, theoretical physicist Ethan Siegel crossed our screen while making clear why, in his view, a multiverse MUST exist. If we know so little about the actual universe that we can’t answer the title question, what sense does it make to insist that there must be an infinity of universes? Read More ›

Physicists: New approach to antimatter offers promising results

According to the Standard Model of our universe, beginning with the Big Bang, there is no difference between matter and antimatter (although they annihilate each other on contact). Why then do we see all matter, no antimatter? A group of physicists decided to test a new theory: From ScienceDaily: About ten picoseconds after the Big Bang — right about the time the Higgs boson was turning on — the universe was a hot plasma of particles. “The technique of dimensional reduction lets us replace the theory which describes this hot plasma with a simpler quantum theory with a set of rules that all the particles must follow,” explains Dr. David Weir, the corresponding author of the article. “It turns out Read More ›