Exoplanets
 
 
Extrasolar planet with rings, seen from an orbiting planet Extrasolar planet with ocean and several moons An extrasolar planet orbiting the star 16 Cygni Planets within a globular cluster Alien moon with a watery landscape An eclipse of the Sun viewed from a watery landscape. An earthlike exoplanet orbiting a binary star An exoplanet with many moons Planets on the edge of the Milky Way galaxy A supernova explosion destroying a system of planets An exoplanet with an Earthlike moon Very hot exoplanet An exoplanet transiting in front of its star Extrasolar planet orbiting a red dwarf A supernova explosion destroying a system of planets An Earthlike exoplanet,Gliese 581c, shown with three moons A giant exoplanet eclipsing its parent star Binary suns rising on a watery, Earth-like planet An Earthlike exoplanet,Gliese 581c An Earthlike exoplanet,Gliese 581c Animation of  an exoplanet transiting in front of its star Blank square Blank square Blank square About this gallery
Hundreds of stars are known to host planets, with the total number of discovered planets being greater than 440 and increasing all the time. Some of the illustrations here are representations of actual systems; others are imaginary.