NASA's TESS tunes into an all-sky 'symphony' of red giant stars

Using observations from NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have identified an unprecedented collection of pulsating red giant stars all across the sky. These stars, whose rhythms arise from internal sound waves, provide the opening chords of a symphonic exploration of our galactic neighborhood.

from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/08/210805141136.htm