Finding a planet is one thing; proving it is a planet when it has no star is the part that usually breaks the story. A newly ...

Astronomers have spotted a Saturn-sized world drifting through a region of space that theory once said should be almost empty ...

Most of the planets we’ve identified are in orbit around stars and formed from the disks of gas and dust that surrounded the ...

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to Earth all year. On Sunday, Sept. 21, Saturn will be at opposition, meaning the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A rare six-planet parade will stretch across the sky before ...