The poet Blake wrote that you can see a world in a grain of sand. But even better, you can see a universe in an atom!

The first planet ever spotted by the Kepler space telescope is falling into its star. Kepler launched in 2009 on a mission to find exoplanets by watching them cross in front of their stars. The first ...

Astronomers studying data from NASA's retired Kepler space telescope discovered a new system of seven "scorching" planets orbiting a distant star that is bigger and hotter than the sun, the space ...

With the help of citizen scientists, astronomers discovered what may be the last three planets that the Kepler Space Telescope saw before it was retired. More than 5,000 planets are confirmed to exist ...