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

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

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface ... years ago, gravity coaxed Earth ...

or perpendicular to the planet's surface) at 9.8 m/s²—that is, an additional 9.8 meters per second, each second. Everything ...