Located 3,000 miles below the Earth’s surface, the inner core is anchored by gravity within the molten ... questions about what's happening at the center of the planet. Is it spinning?

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

Some areas rise where gravity is stronger, while others dip where it is weaker. These variations, called "geoid anomalies," reveal how mass is distributed deep within the Earth. One of the most ...

Could a reactionless, gravity-defying propulsion system actually work? A former NASA engineer says yes, but scientists are skeptical.

A suitcase-sized quantum sensor could soon reveal hidden water, oil, and even underground mountains—all by tracking how atoms ...

NASA and partners are building the first quantum gravity sensor for space, a breakthrough instrument that uses ultra-cold ...

NASA’s quantum sensor satellite will map gravity shifts to uncover Earth’s hidden resources, changes, and patterns.

Isaac Newton - isn't he the guy who discovered gravity? Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float!