The Tyrannosaurus rex has been a screen superstar in the "Jurassic Park" franchise, showing the dinosaur's awesome killing power. Apple TV+'s "Prehistoric Planet" shows a very different side to the ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

The exoplanet 8 Ursae Minoris b should not exist. It orbits its host star at just half the Earth-Sun distance, and by all indications, the star should have gone through a phase in which it bloated up ...

Among the solar system’s more intriguing mysteries is whether a large, icy planet lives in the outer regions of our cosmic neighborhood, well beyond the orbit of Neptune. This hypothetical world, ...