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Scientists have used a portable “atomic clock” to measure gravity for the first time. The device makes use of small changes in the flow of time at different altitudes to measure the Earth’s gravity.

Gravity is the weakest of the four fundamental forces of nature but it is also the most impactful on your day-to-day business. Every time you drop a pencil or an apple lands on your head, gravity ...

UPDATE: The launch of the SpaceX Falcon 9 rocket was scrubbed Monday (April 14) afternoon due to a helium leak. The rocket will launch no earlier than Friday (April 18) at 3:25 p.m. WEST LAFAYETTE, ...

BOSTON, Dec. 27 (UPI) --Researchers have found a way to improve atom interferometers, the most common and precise tool for measuring gravity. Atom interferometers measure difference in wave ...

One lab at NASA’s Jet Propulsion Laboratory in Southern California is literally trying to defy gravity. The Cold Atom Lab (CAL) at JPL allows scientists to investigate the properties of atoms and ...

LAUREL, Md. — Two microsatellites developed for an Air Force lab have taken on a NASA mission to map the moon's gravity by using precise formation flying. The Gravity Recovery and Interior Laboratory ...

GRASS will launch about the Hera mission in October 2024, if all goes according to plan. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...

South of the German city of Koblenz, the river Rhine narrows over a stretch of 30 miles, forcing its already strong current to increase. Speckled with underwater rocks, this route was once a risky ...

Apollo 17 astronauts drove a moon buggy across the lunar surface in 1972, measuring subtle changes in gravitational pull with an instrument called a gravimeter. Although there are no astronauts on ...

Most of us think of time as a way to measure things like the length of our days and the span of our lives. But if you had access to a pair of extremely high-precision clocks, you could use time in a ...