One of the great unanswered questions of science is why the laws of the universe seem so carefully tuned to allow for the existence of stars, galaxies, even humans. Scientists, philosophers and theologians have long mulled over this mystery. In this 15-minute episode of Subatomic Stories, Fermilab scientist Don Lincoln talks about the multiverse, which is a highly speculative possible answer to the question.
Scientists have long called the expanding universe “the Big Bang,” but the term is confusing. Many people think the Big Bang is the name of the moment of the creation of the universe, but it’s really just the expanding phase. In this episode of Subatomic Stories, Fermilab scientist Don Lincoln explains some of the speculative ideas that have been proposed about the actual and literal moment of creation.
The first moments of the universe are still not well understood by modern science. While the theory of the Big Bang covers the big picture, it doesn’t address some detailed questions. In this episode of Subatomic Stories, Fermilab scientist Don Lincoln describes the idea of inflation, which is an addition to the Big Bang. Together, the two theories appear to be another step forward in our understanding of the origins of the cosmos.
Einstein’s equation E = mc2and the theory of the Big Bang are both generally accepted physics theories, and yet, between them, they make an unphysical prediction. They predict that matter and antimatter should be observed in equal quantities. Yet the universe is made only of matter. Why is that? In this 11-minute episode of Subatomic Stories, Fermilab scientist Don Lincoln explains what is going on.
The U.S. Department of Energy has selected Lawrence Berkeley National Laboratory to lead a DOE/NSF experiment that combines observatories at the South Pole and in Chile’s high desert. Fermilab plans to be a key partner on the experiment, called CMB-S4, which aims to undertake an unprecedented survey of the early universe.