By Franck Marchis in Asteroids, deformable mirror, Exoplanet imager, exoplanets, GPI, integral field spectrograph, What is GPI? Posted September 20, 2018 at 3:59 pm The End of Kepler – It’s not over yet but it will happen soon. The Kepler space telescope, which was launched in March 2009, is the tenth NASA Discovery mission and the first dedicated to searching for and studying exoplanets. […]