In the 30 years since the discovery of 51 Pegasi b, more than 6,000 planets outside our Solar System have been catalogued. Two modern-day explorers explain how.

This tried-and-true method is one of the best ways to study so you actually retain information—and it's not hard to do. Here's what you need to know.

Step aside, carbon dating. Paleontologists date fossils based on the clues in the rocks surrounding them. When paleontologists dig up a fossil from the ground, how do they figure out the age of the ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Asking students to identify an example of what something is—and importantly, what it isn’t—helps establish clarity and leaves ...

Stefan Hutzler and Louise Bradley explain how they turned the famous pitch-drop experiment into an outreach activity ...

Inc. is the voice of the American entrepreneur. We inspire, inform, and document the most fascinating people in business: the ...

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

Learn how to use the High-Low Method to separate fixed and variable costs efficiently. Discover its applications, limitations, and how to calculate costs.