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 ...

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 ...

U.S. President Donald Trump’s decision to impose steep tariffs on all passenger vehicles made outside the U.S. has hit the ...

To permanently protect 150 million acres of the Brazilian Amazon, Brazil established the Amazon Region Protected Areas (ARPA) ...