In this edition of Space, Euronews correspondent Jeremy Wilks reports from the Observatory of Geneva - home to experts in exoplanets, the name given to planets outside our solar system.<br /><br />So far they have managed to find more than 3500 exoplanets but they believe there could be literally billions of them across the Milky Way.<br /><br />The first exoplanet to be discovered was what's known as a hot Jupiter, a giant gas planet orbiting close to its star. That discovery, made by University of Geneva professor Michel Mayor in 1995, kick-started a revolution in astronomy, one which at the time of our interview put the number of exoplanets at 3559 and counting.<br /><br />Credit/Courtesy: ESA/Euronews
