A rocky planet with a 24-hour orbit and an ice giant that takes five years to complete its orbit have been detected orbiting ...

I’m not sure whether it was elementary school science classes or Fred Flintstone’s Brontosaurus burgers that made the giant herbivore one of the most recognizable dinosaurs to me as a kid. But for ...

Gigantic hidden fortresses discovered 1,800 miles underground in Earth's mantle, rewrite how the planet's interior works.