A “city killer” asteroid experts feared was on a crash course with Earth is now expected to miss the planet — but it still has a chance of smashing into the moon. Asteroid 2024 YR4, first detected in ...
The US Army's got a new three-week crash course on flying drones. It's an aggressive attempt to catch up on drone warfare, the director said. The Army has made drones a top capability in the coming ...
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