Falling out of an airplane without a parachute is almost certainly fatal; understand the physics of freefall. Samuel Alito ...

NASA’s oldest active astronaut, Don Pettit, has returned safely to Earth after a seven-month mission aboard the ISS, landing ...

Vesna Vulović, trapped in the tail section of the DC-9 as it plummeted to Earth, survived the crash in a snow-covered forest, ...

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