The universe does not build planets the way we imagined.
Before 1995, our solar system was the only one we knew. Since then, astronomers have confirmed more than five thousand five hundred worlds beyond our Sun - and what they have found has overturned every assumption about what a planet can be.
The Exoplanet Zoo is a guided tour of the most extraordinary worlds in that catalogue: the fifteen planets and classes of world that have most dramatically expanded our understanding of planetary science. From hellworlds being torn apart by their own stars, to worlds where glass rains sideways at hurricane speeds, to a real-life Tatooine orbiting two suns, to planets wandering starless through the darkness between the stars - each chapter reveals a world that is, in its own way, impossible to forget.
WASP-12b - a planet being eaten alive by its star, its year lasting just 26 hoursHD 189733b - a deep blue world where silicate glass rains at 8,700 km/h55 Cancri e - a lava world whose surface is a global ocean of molten rockTrES-2b - the darkest known planet, reflecting less light than coalKepler-51b - a "cotton candy" world less dense than styrofoamTRAPPIST-1e - the most compelling candidate for life beyond our solar systemKepler-442b - the most Earth-like planet yet discoveredʻOumuamua - the mysterious interstellar visitor that broke all the rules