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

Learn how we know the Earth is round, and the science behind the shape of our gravitational field.

Buckle up, nerds: NASA is building the first quantum gravity sensor for space—a suitcase-sized instrument that could soon be measuring everything from subterranean water to hidden reserves of ...

Chinese engineers have unveiled the CHIEF1900, a record-breaking hypergravity centrifuge capable of simulating extreme ...

Earth and the Moon are forever locked in a gravitational embrace that has played a critical role in determining the fate of both worlds. Although they have grown more distant since their formative ...

That is a brilliantly simple question, yet so revealing. To answer this, we need to put to one side how an Earth with a flat side would form. With Newtonian gravity, this would be quite difficult, as ...

The surface of Earth's inner core appears to be dynamic, changing shape as it rotates, earthquake waves reveal. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...