In the free resource for teachers, Mwaksy and Greg observe how magnets attract or repel each other and attract some materials ...

Dark matter is thought to make up a little over a quarter of the universe, but it has never actually been detected. Researchers repurposed an experiment originally intended to detect gravity, which ...

I HAVE no intention of discussing the beautiful experiments of Prof. A. M. Meyer on floating magnets; but as a privately expressed opinion of mine has appeared in NATURE, vol. xviii. p. 260, I feel ...

Here's what you'll learn when you read this story: What we think of as 'the unknown' isn't always some hypothetical wormhole or alternate dimension. A lot of times, the 'unknown' is something real, ...