Gravity

Earth’s gravitational force, g, has been known for centuries. But the exact value of G, the universal gravitational constant, is elusive

An 18-year dataset from the North Sea reveals that rogue waves are not freak accidents but particular products of ordinary swells stacking up—an insight that could make prediction possible

In principle, this impossible math allows for a glue-free bridge of stacked blocks that can stretch across the Grand Canyon—and into infinity

For the first time, scientists observed matter’s free fall into a black hole’s “plunging region”

How do astronomers find the darkest objects in the universe?

Perspective and subtle motion allows us to peek over the moon’s edge and into its far side

According to Albert Einstein’s general theory of relativity, the universe remembers every gravitational wave—and scientists could soon test these cosmic recollections

From the discovery of new elements to the testing of novel theories of gravity, total solar eclipses have helped spark scientific progress for centuries

Here’s the best, most inspiring and coolest science we encountered this year

Fresh images show off the Euclid space telescope’s ability to capture crisp pictures of vast swaths of sky

Several unexplained measurements are threatening to upend scientists’ understanding of the universe’s origin and fate

Strange patterns in the orbits of small objects in the outer solar system could be explained by gaps in our understanding of gravity rather than an as-yet-unseen new world