Uranus revealed: Solving the ice giant’s heat mystery

Uranus revealed: Solving the ice giant’s heat mystery

For decades, Uranus has puzzled scientists. Unlike the other giant planets, Voyager 2’s 1986 flyby suggested the ice giant emitted no excess heat. Now, thanks to new analyses of Voyager data, decades of ground-based and space-based observations, and refined models, scientists have confirmed that Uranus does radiate more heat than it receives from the Sun.

Host Sarah Al-Ahmed speaks with atmospheric scientist Michael Roman (Assistant Professor at the Universidad Adolfo Ibáñez in Chile) about his team’s new study showing Uranus emits around 12.5% more energy than it absorbs. Together, they explore what this means for our understanding of Uranus’s atmosphere, its bizarre seasonal cycles, the planet’s violent past, and why these findings strengthen the case for a future flagship mission to the Solar System’s overlooked ice giants.

Stick around for What’s Up with Bruce Betts, Planetary Society chief scientist, for a look at Uranus’ newly discovered moon and a new random space fact.

Discover more at: https://www.planetary.org/planetary-radio/2025-uranus-energy-balance

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Phil Christensen Explores Mars in the Infrared

Phil Christensen Explores Mars in the Infrared

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Journey to the Center of the Earth!

Journey to the Center of the Earth!

Journey to the Center of the Earth!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

19 Maj 200330min

Getting a Rover's-Eye View of Mars

Getting a Rover's-Eye View of Mars

Hear excerpts of the Mars Exploration Rover imaging team lead Jim Bell's presentation last week at Planetary Society headquarters; Emily looks for life on the moon, while Bruce Betts says to get ready for this week's lunar eclipse!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

12 Maj 200328min

Columbia Experiment Recovered!

Columbia Experiment Recovered!

Columbia Experiment Recovered!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

5 Maj 200328min

Looking Back: Jurrie van der Woude's 37 years at JPL

Looking Back: Jurrie van der Woude's 37 years at JPL

Looking Back: Jurrie van der Woude's 37 years at JPLLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

28 Apr 200335min

Return to Mars: Two Rover Landing Sites Chosen

Return to Mars: Two Rover Landing Sites Chosen

Matt Golombek tells us about the Mars Exploration Rover landing site selection process and the exciting destinations just chosen. What objects hold the solar system's speed record? We'll find out from Emily.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

21 Apr 200329min

A Microphone on Mars?

A Microphone on Mars?

What would you sound like on Mars? Berkeley researcher Greg Delory and the Planetary Society have developed the Mars Microphone, so that we can find out.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

14 Apr 200329min

Deep Space 1 / ET Phones Home!

Deep Space 1 / ET Phones Home!

Deep Space 1 / ET Phones Home!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

7 Apr 200330min

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