The night sky across Houston briefly flashed Saturday night, followed by a sonic boom. It was caused by a meteor, which have ...

This is a brilliant question because the notion of an orbit is counterintuitive. We know that massive objects (really, any objects with mass) gravitationally attract other massive objects; Newton’s ...

NASA's Van Allen Probe A crashed to Earth on Wednesday morning (March 11) after nearly 14 years in orbit, according to the space agency. Most of the spacecraft likely burned up in the atmosphere.

Earth's orbiting satellites are commonly regarded as if they were suspended in mid-air. It is a fact that they actually experience a state of continuous free fall. This implies that they fall toward ...

Space junk falling out of orbit and crashing toward Earth is a growing threat. Indeed, old satellites and spacecraft parts reenter our planet’s atmosphere more than three times a day. When these ...

Falling space junk is becoming a real-world hazard, and scientists have found a clever new way to track it using instruments already listening to the Earth itself. By tapping into networks of ...