After visiting all seven continents in a year, I'd go back to countries like Australia and Turkey, but I'd skip return trips ...

On the night after the Trump-Putin call, Russia attacked Ukraine with 140 drones, shelled residential buildings in the city ...

Quantum effects like superposition and entanglement have long been seen in single particles, but physicists are on a quest to find out just how big an object can be before it loses its quantumness ...