Out of 75 coronae examined, 52 showed signs of these underground forces still at work, hinting that tectonic activity may be ...

The researchers discovered that the lunar nearside flexes slightly more than the farside during its elliptical orbit around ...

Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its axis every 24.6 Earth hours, defining the length of a Martian day, which is called a sol (short for “solar day”).

The finding could explain the long-running mystery of why the surfaces of the lunar near and far sides are so different.

Gravity close gravityThe force of attraction between all objects. The more mass an object has, the larger the force of gravity it exerts. is a force that attracts objects towards each other. The ...

Some objects fall differently depending on how gravity and air resistance interact. A feather, for example, is light and has a large surface area, meaning it will fall to the ground slowly.