Are they stars? Are they planets? Or are they neither? Some rogue planetary mass objects that wander the cosmos alone could ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Play the USA TODAY Daily Crossword Puzzle. Here's what to know about the upcoming skyward spectacle. According to the Science Alert website, "It's not uncommon for a few planets to be on the same ...