While testing a new system, DARPA unintentionally created a "rocket radar" that can detect objects reentering Earth's atmosphere.

While trying to determine if it could use the entire Earth's atmosphere as a massive sensor, the US military’s Defense ...

Scientists envision a future of AI units sharing knowledge like a hive-mind, enabling fast, adaptable responses across fields, without the risks of centralized control. Leading computer scientists ...

A new on-chip sensor using twisted moiré photonic crystals can precisely tune light properties in real time. This could ...

Engadget's experienced editorial team has tested and reviewed hundreds of digital cameras and photography gear over the past ...