How does gravity work? Gravity applies an effective force of mutual attraction to things with inertial mass, including physical matter and photons.

How does gravity work? Gravity applies an effective force of mutual attraction to things with inertial mass, including physical matter and photons.

The team found that, by including a softer layer at the base of the moon's mantle, it was easier to reproduce the observed gravity measurements.

Heat from tidal forces remelted the Moon’s crust, says new reesarch, which may explain why the Moon is older than some samples appear.

In outer space, where gravity is minimal, our muscles (especially the anti-gravitational ones) are not used as much, which might result in their atrophy and changes to their structure and properties.

Partners use Blue Origin’s New Shepard rocket to test out technologies bound for the moon—without actually sending them there.

The world’s gravity will accelerate you as you fall in, you’ll whip around at closest approach (that’s the “slingshot” part), and then you’ll lose that extra velocity as you move away ...

For decades, researchers testing rovers have accounted for that difference in gravity by creating a prototype that is a sixth ...

Have you ever wondered how astronauts seem to defy gravity and float around aboard their spacecrafts? Is it possible to simulate this on earth?