The vast majority of polished diamonds are clear and sparkly, but some come in unexpected colors like blue, green and even ...

The oceans may play a very important role in creating plate tectonics. What you can get is something called stagnant lid convection, where the convection goes on underneath the surface, but the ...

The planet Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. There’s nothing to walk on, and no place to land a spaceship.

Sparkling reflections on Mars that led to hopes of water on the planet might actually have just been an illusion, scientists have said. In 2018, researchers spotted bright reflections under the ...