Are antimatter stars firing bullets of antihelium at Earth? – Physics World

The mystery of matter and antimatter
The focus has therefore turned back to what at first may seem an improbable explanation – stars made purely from antimatter. According to theory, matter and antimatter should have been created in equal amounts in the Big Bang, and subsequently all annihilated leaving a universe full of radiation and no matter. Yet since we live in a matter-dominated universe, more matter than antimatter must have been created in the Big Bang – a mystery that physicists have grappled with for decades.
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Can physics prove if God exists? – BBC Future

We cannot observe or see across the entirety of the Universe that has grown since the Big Bang because insufficient time has passed for light from the first fractions of a second to reach us. Some argue that we therefore cannot be sure whether the laws of physics could be broken in other cosmic regions – perhaps they are just local, accidental laws. And that leads us on to something even bigger than the Universe.

The multiverse
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