NASA’s Jet Propulsion Laboratory (JPL) in Southern California, along with academic and industry partners, is advancing a groundbreaking quantum sensing technology designed to measure gravity from space for the first time. Supported by NASA’s Earth Science Technology Office (ESTO), this effort aims to pioneer a new era of Earth observation using quantum-based instruments to reveal hidden features beneath the planet’s surface, such as underground aquifers, mineral reserves, and oil deposits.
Unlike static physical properties, Earth’s gravitational field continuously changes in response to the dynamic movement of mass below the surface. Detecting these subtle gravitational variations requires extremely sensitive tools. This is where gravity gradiometers come in—specialized instruments that measure how gravitational force changes over small distances. These changes, while imperceptible in daily life, provide critical insights into subsurface structures and are valuable for fields ranging from environmental science to national security.
Continue reading… “Unlocking Earth’s Secrets from Space: NASA Develops Quantum Sensor to Measure Gravity”