Eavesdrop On Experts
Catching sight of dark matter
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 0:25:56
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Sinopse
"I would say we have millions of dark matter particles passing through our bodies every day, continuously," says Elisabetta Barberio, Professor of Physics at the University of Melbourne and the Director of the ARC Centre of Excellence for Dark Matter Particle Physics. “The dark matter particle gets its name because it doesn’t emit light. So, if you have a telescope, you cannot see it. But it does not only not emit light in the visible spectrum, it doesn’t emit any electromagnetic radiation, so radio waves, infrared, ultraviolet. “No matter which kind of astronomical instrument you try to look at the sky, you cannot see it,” Professor Barberio says. She explains that we know that galaxies have been formed at a certain time in the history of the universe, and they’ve been formed where there were pockets of this dark matter. So, we know that dark matter is there. “To catch dark matter that is all around us in the galaxy, we need to go deep underground because we don’t want all these cosmic rays that reach us