The Science Siblings are celebrating Heart Month with some facts and a DIY model. “For example, the size of your heart is about the same size as your fist. And also, the average heart weighs between ...

Roller coasters are not only great fun to ride, they’re also fascinating pieces of engineering. Building your own full-size coaster is sadly beyond most people’s means, so the average enthusiast will ...

This activity is part of the Science Friday Sun Camp collection! Since you can’t visit the Sun right now—it is about 93 million miles away after all—you need to rely on pictures taken by telescopes ...