So a sound wave that passes deep through the interior of the sun to the opposite side and bounces back will return sooner than one that makes lots of little bounces close to the surface. (discovermagazine.com)
Proving the idea will require a better understanding of what's going on deep in the interior of the sun, which computer simulations are not up to yet, Guhathakurta says. (sciencenews.org)
It could even be used to examine the interior of the sun. (discovermagazine.com)