Scientists have discovered a mysterious gravity signal detected by satellites nearly 20 years ago, which is linked to deep mantle changes beneath the Earth’s surface. The anomaly, lasting two years, coincided with a magnetic “jerk”, suggesting a rapid mass shift near the planet’s core.Scientists have discovered a mysterious gravity signal detected by satellites nearly 20 years ago, which is linked to deep mantle changes beneath the Earth’s surface. The anomaly, lasting two years, coincided with a magnetic “jerk”, suggesting a rapid mass shift near the planet’s core.
