Keeping the air on has long been the number one rule in airbrushing. Why? In this video I explain why that rule is important; however, I also explain why that may not be the best advice for everybody.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director: James ...

Active ingredients are the parts of your skincare that actually change the skin. Three common ones are retinol, vitamin C, and hyaluronic acid. Each one targets a different concern, like lines, dark ...