Markets ended 2025 on a firm footing despite volatility across asset classes and sectors. The S&P 500 finished the year up 16 ...

MICHAEL J. BUSTAMANTE is Emilio Bacardí Moreau Chair in Cuban and Cuban-American Studies at the University of Miami and the author of Cuban Memory Wars: Retrospective Politics in Revolution and Exile.

Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one problem—such a device would defy the laws of ...