The Human Fingerprint on Earth’s Water Cycle
The Human Fingerprint on Earth’s Water Cycle

Human activities have become intertwined with how water is distributed across the continents. A new study brings their effects into sharper focus.

NASA Watches Earth’s Weight, Finds Center of Mass
NASA Watches Earth’s Weight, Finds Center of Mass

Seasonal changes redistribute enough water around Earth to shift the planet’s center of mass back and forth by fractions of an inch relative to its geometric center. NASA scientists are on the case, tracking the oscillations because Earth’s center of mass is a crucial reference point for satellite navigation and elevation measurements. A team, led […]