The space telescopes CoRoT (2007-2013) and Kepler (2008-…) recently put asteroseismology in front of the stage. The goal of these missions was double: detecting exoplanets by the method of transits and revealing the vibration spectra of star in all their wealth. To do that, these instruments measured with an extremely high precision the time variation of the flux emitted by hundred thousands of stars. Their harvest is up to expectations. It remains to understand what the observed vibrations tell us! In 2018 and 2024, the space mission TESS of the NASA and PLATO of the ESA will succeed them. They will observe the vibrations of many more stars and detect their planets (some of them very similar to the Earth). TESS looks all bright stars of the sky and PLATO will focus on stars in all directions of the plane of our Galaxy.