About 63 light-years from Earth sits a planet that looks, from a distance, deceptively familiar. HD 189733b glows a deep cobalt blue, the same color that oceans and clear skies lend to Earth. The ...

Scientists might have just found Earth's icy, distant cousin a few hundred light-years away. HD 137010 b is one of thousands of exoplanets, or planets that orbit other stars, and is potentially the ...