When a young PhD student and his professor were studying more than 100 stars at an observatory in south-east France in 1994, they made a discovery that revolutionised the world's understanding of the cosmos.
Student Didier Queloz and his adviser, astrophysicist Michel Mayor, noticed that one of the stars was wobbling, a
"We really had a hard time convincing our colleagues that we had a true planet But many exoplanets are awkward compared with the planets of the solar system, in the sense that they are way closer to the Sun,"
