A new probe in development known as GIRO represents a low-cost step toward unlocking the secrets of the outer planets, all through the invisible pull of gravity.

Gas planets are not the only example of celestial bodies that resist diffusion due to gravity. Like gas planets, “stars are just giant balls of gas,” said Knittle. “And they hold together.” ...

And on smaller scales, the effects of gravity get weaker and weaker. It’s easy to see the effects of gravity for objects the size of a star or planet, but it is much harder to detect gravitational ...

Gravity on the surface, g in N/kg 11.2 Use a set of bathroom scales to measure your mass in kg. Then use the table above and the equation: Weight = mass x gravity to investigate how your mass and ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

NASA scientists have discovered an electric field encompassing Earth’s atmosphere that is as "fundamental" as gravity -- and could even give clues about possible life on other planets.

One common question people seem to have about the planets' orbits is why the planets are drifting away from the Sun, given the Sun's strong gravitational pull keeping the Solar System together ...

In classical (or "Newtonian") mechanics, which describes the motion of macroscopic objects (i.e., things larger than an atom, such as planets), gravity is sometimes called a central force.