It's unlikely you'll be able to walk outside and see a line of planets, but according to NASA, a seven-planet parade happening tonight could be visible in some form in parts of the U.S. The ...

Mars once looked far more like Earth, with a thicker atmosphere and liquid water pooling on its surface, yet today it is a ...

The milestone highlights the accelerating rate of discoveries, just over three decades since the first exoplanets were found. The official number of exoplanets — planets outside our solar system — ...

NASA has discovered a “super-Earth” that may be habitable — and it’s “only” 137 light-years away. “By astronomical standards, that’s not too bad!” the agency insisted on X about the planet dubbed ...

Looking for the perfect vacation? Do you crave late-night fun? PSO J318.5−22, the planet with no star where nightlife never ends, is perfect for you! Prefer some peace and a chance to catch some ...

Are we alone in the universe? Are there planets like Earth around other “suns” that might harbor life? Thanks to a recent technology breakthrough on a key NASA planet-finding project, the dream ...