Obviously, the first star where these very faint oscillations were discovered was in our Sun. In the 60s, solar telescopes revealed that acoustic waves similar to those of our earthquakes traveled its surface, only with a totally different origin and that has to do with the way in which the star transports the energy produced in the core to the outside. In stars like the Sun, the energy produced in the central nuclear furnace is transmitted to the surface by convection, the same as when we boil water in a pot, which gurgles because hot matter rises and cold matter falls. Gas in the Sun is virtually boiling, and hot gas bubbles rise to the surface at a speed close to the speed of sound.
In the same way that we can hear how water boils in a pot, with the sun we can do the same. Unfortunately, we cannot hear this gurgling because the sound does not travel through space. And even if we could, we wouldn't hear anything because it's below the threshold of human hearing. What we can do is see how this cosmic bell vibrates, a beat that provides vital information about the physical conditions of the solar interior.
If we want to imagine the tolling of this immense gas bell, let's forget about the blow of the clapper. A much more accurate image is that of thousands of grains of sand striking against it.
