Using Microwave Eyes to Peer Deep Inside Giant Planets

By Space.Fan Editorial DeskSeptember 19, 2026 at 5:01 PM UTC

Scientists are planning to use special radio sensors to see deep into the stormy hearts of gas giants like Saturn and Uranus.

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The Drop

Our current spacecraft take wonderful pictures of the tops of clouds on giant s, but they have trouble seeing what is happening deep down inside. To fix this, scientists are looking to tools called microwave radiometers. These devices work like special scanners that can see through thick layers of gas and clouds to measure what is hidden underneath. We know this technology works because of the Juno mission. While orbiting Jupiter, its own microwave instrument revealed that the 's atmosphere acts in ways we never expected. It showed us new secrets about how heat and chemicals move deep within the giant 's core. Now, experts want to use these same kinds of tools on future missions to Saturn, Uranus, and Neptune. By measuring microwave light, researchers can figure out exactly what these s are made of and how their weather systems grow from the bottom up. This research provides the engineering blueprint for building these powerful tools. By setting the right standards now, space agencies can make sure their future probes are ready to uncover the mysteries hidden beneath the colorful clouds of our solar system's largest worlds.

Why It Matters

Understanding the deep atmospheres of giant s helps us learn how our solar system formed. By seeing how heat and materials travel deep inside, scientists can determine if these s grew the way we think they did. It helps rule out old guesses and gives us a clear look at the true nature of these massive worlds.

The Catch

While this study outlines how to build these tools, it does not guarantee that future missions will actually include them. The success of these instruments depends on having enough power and weight space on a spacecraft to carry them, which is a major challenge for missions traveling to the cold, distant outer s.

Put That in Perspective

Microwave scanners have been used for years to track weather on Earth, from soil moisture to ocean winds. Moving this technology to deep space represents a massive leap in how we study other planets, shifting our view from just observing the surface to understanding the complex guts of a planet.

Source September 19, 2026

Alex B. Akins and Mark D. Hofstadter

Jet Propulsion Laboratory, California Institute of Technology; Space Science Institute·The Planetary Science Journal·10.3847/PSJ/ae9c31

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