Discover the Diamond-Water Paradox—why diamonds cost more than water. Learn about subjective value and marginal utility in economic valuation.

The basic principle of weight loss is straightforward: if you consume fewer calories than you burn, you’ll lose weight. In practice though, this isn’t usually so easy or simple. Alongside counting ...

Where is everybody? Explore the iceberg of theories that attempt to answer why we haven’t made contact with extraterrestrial ...

NASA’s confirmation that Earth has darkened as air has grown cleaner captures a jarring reality: the same policies that spare lungs can, in the short term, expose the planet to more heat. As pollution ...