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Physics & Astronomy Facts


Torque

A force may be thought of as a push or pull in a specific direction. When a force is applied to an object, the object accelerates in the direction of the force according to Newton's laws of motion. Th ...

Powerful Quasars

Quasars appear as distant, highly luminous objects that look like stars. Strong evidence now exists that a quasar is produced by gas falling into a supermassive black hole in the center of a galaxy. Q ...

Mercury

The small and rocky planet Mercury is the closest planet to the Sun; it speeds around the Sun in a wildly elliptical (non-circular) orbit that takes it as close as 47 million km and as far as 70 milli ...

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