A heatmap is a graphical representation of data using colors that represent different values. It's often used to demonstrate user behavior on a particular web page.

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—poses a risk to humans when it falls to the ground. To locate possible crash sites, a Johns Hopkins University ...