NASA on Friday confirmed that it has moved up the return of stranded astronauts Butch Wilmore and Sunita Williams to ...

Instead, this force can vary depending on where you are. For example, gravity’s effects on Earth at the equator are different, as the pull is weaker there. Gravity is changing parts of our ...

And, without gravity, we'd all float! Hmmmm… You're right! The force of gravity is weaker on the Moon than on the Earth, so here you can jump much higher! Gravity also acts between the Moon and ...

The visible universe—including Earth, the sun ... invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent). Scientists have not ...

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity.