A massive upheaval in the Saturnian system could have also led to the moon Hyperion.

The chief justice’s opinion hinged on a legal principle called the “major questions doctrine” — the same doctrine that was used repeatedly to block the Biden administration’s regulations and orders.

In a major setback for President Trump’s economic agenda, the court ruled that he could not invoke an emergency power to set tariffs on imports.

Discover the evolution of economics from ancient times to modern theories that influence global markets, including Adam Smith and Keynesian approaches.