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NASA scientists have studied 17 years of gravity observations of our planet to understand how the global water cycle is changing.

The American Institute of Aeronautics and Astronautics (AIAA) is honoring Jet Propulsion Laboratory Director Watkins and Autonomous Systems Manager Gross, plus two European partners, for work on the GRACE missions.

So just how does the Surface Water and Ocean Topography (SWOT) mission expect to measure what’s flowing in the planet’s lakes, rivers, and oceans? A very busy project manager explains.

A new approach to simulations seamlessly combines multiple computer models for more fluid – and more precise – portraits of possible changes to come.

Due to ice's important role in the Earth system, NASA is committed to studying it extensively.

From big to small, each of us is part of the gorgeous mosaic of Earth. Learn how you can connect to NASA's Earth Day 2021 activities.