Big Bang

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Antimatter galaxies: if they existed “They could generate the most explosive event after the Big Bang”

    From RECCOM Magazine (Italy), May 17, 2021: Dan Hooper talks about the possible existence of another universe. Physicists believe the Big Bang created equal amounts of matter and antimatter in the early history of the universe – but they can’t explain how antimatter vanished. Perhaps it is not and it resides isolated in some remote regions of our universe.

    The perplexing question of missing cosmic antimatter

      From Forbes, Feb. 10, 2021: Fermilab scientist Don Lincoln explains why there should be equal amounts of matter and antimatter in the universe. There aren’t. He discusses several current theories that try to explain the discrepancy. Better understanding this imbalance is an aim of ongoing experiments, such as DUNE, which is being built at Fermilab.

      Dan Hooper: What happened at the Big Bang?

        From New Scientist, Jan. 25, 2021: The Big Bang left us the universe — and a major set of mysteries around antimatter, dark matter, dark energy, and cosmic inflation. While the Large Hadron Collider looks at what the laws of physics were like a trillionth of a second after the Big Bang, Dan Hooper, head of theoretical astrophysics at Fermilab, thinks the answers to these puzzles may depend on better understanding that first fraction of a second — even closer to the universe’s beginning.