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A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity ...

NASA’s Psyche spacecraft will use Mars’ gravity on May 15 to gain speed and adjust its path toward the mysterious metal rich asteroid Psyche.

Physicists have created a mini sun with its own simulated gravity to investigate the causes of extreme space weather. The tiny sun — consisting of a superheated plasma inside a 1-inch-wide ...

Gravity is the force that governs the structure and motion of the solar system, keeping celestial bodies together in a cosmic dance. The sun, with its immense mass, generates the strongest ...