Gravity is the force of action between two objects. It’s called a natural force because it acts at a distance rather than needing to be in contact. Gravity is the force that holds us down on Earth and ...

ORLANDO, Fla. – Strolling along the beach, you find seashells and seaweed left behind by the receding tides at your feet. When you gaze up at the moon, you’re looking at the primary cause for the ebb ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

I'm a sucker for interesting online games that don't have a score or even a goal. In this case, it's a cartoon space simulator to promote the book What If? 2, by Randall Munroe, the author of the xkcd ...

As the story goes, mathematician Sir Isaac Newton was sitting in an orchard after supper when he saw an apple fall from a tree. He wondered why apples always fall straight to the ground, instead of ...

It is true that gravity is weakest among the fundamental forces. However, the effect of gravity can be felt even at arbitrarily large distances for two reasons. The first is a consequence of the ...