Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

Material engineers are helping save water by creating cutting-edge technologies and eco-friendly materials. They’ve developed 3D-printed concrete that requires much less water to produce than ...