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Water on Earth

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Cutting-Edge Satellite Tracks Lake Water Levels in Ohio River Basin

New NASA Study Tallies Carbon Emissions From Massive Canadian Fires

How ‘Glowing’ Plants Could Help Scientists Predict Flash Drought

International SWOT Mission Can Improve Flood Prediction

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The mighty Yukon River and nearby lakes appear in red in this image produced using data recorded on June 18, 2023, by the international Surface Water and Ocean Topography (SWOT) satellite as it passed over Alaska.

This animation, created in 2012, shows the increasing clarity and detail of measurements of sea height made by successive satellite altimeters launched by NASA and other agencies over the past four decades.

Using NASA Herschel Space Observatory, astronomers have discovered that comet Hartley 2 possesses a ratio of heavy water to light, or normal, water that matches what found in Earth oceans.

This image shows differences in atmospheric water vapor relative to a normal average year in the Earth upper troposphere about 10 kilometers 6 miles above the surface.

Illustration of the twin spacecraft of the NASA/German Research Centre for Geosciences (GFZ) GGRACE-FO mission. GRACE-FO will continue tracking the evolution of Earth's water cycle by monitoring changes in the distribution of mass on Earth.

Illustration of the twin spacecraft of the NASA/German Research Centre for Geosciences (GFZ) GRACE-FO mission. GRACE-FO will continue tracking the evolution of Earth's water cycle by monitoring changes in the distribution of mass on Earth.

Illustration of the twin spacecraft of the NASA/German Research Centre for Geosciences (GFZ) GRACE-FO mission. GRACE-FO will continue tracking the evolution of Earth's water cycle by monitoring changes in the distribution of mass on Earth.

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