(CNN) — In 1610, after he built his telescope, Galileo Galilei first spotted enormous Saturn’s gigantic rings. More than 400 years later, astronomers have in a sense dwarfed that discovery with a ...

Saturn, you've got company. A planet orbiting the young, sun-like star J1407 in the southern constellation Centaurus has a ring system that makes yours look, well, microscopic. Not only is the planet ...