Gravity used to be the most dependable rule in the cosmic rulebook, the quiet background force that never changed its mind.

Gravity is the reason things with mass or energy are attracted to each other. It is why apples fall toward the ground and planets orbit stars. Magnets attract some types of metals, but they can also ...

We learn more about Modified Newtonian Dynamics aka MOND. What if there is no such thing as dark matter? What if our understanding of gravity is just wrong? New work is taking another shot at that ...

Recent research has sparked a captivating debate among physicists and philosophers alike: could gravity, the fundamental force that governs the universe, be nothing more than an illusion? This ...

To understand gravity, Einstein had to rethink space and time as a single connected fabric. He showed that mass bends this fabric, guiding how everything moves. NOVA is available to stream on pbs.org ...

For over a century, Einstein's general theory of relativity has been key to understanding gravity. But new research suggests this theory "glitches" in the farthest reaches of space. That doesn't mean ...

The original version of this story appeared in Quanta Magazine. At the beginning of time and the center of every black hole lies a point of infinite density called a singularity. To explore these ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny particles, with general relativity, which explains the universe’s vast structures.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on rocket launches, skywatching events and more! You are ...

Gravity, a fundamental force we take for granted, might be more mysterious than we ever imagined. A groundbreaking study has emerged, challenging long-held beliefs about gravity and its nature. This ...

In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity into the same mathematical language as the other forces of nature. While the ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...