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cover of episode Volcanic worlds across the Solar System

Volcanic worlds across the Solar System

2025/5/28
logo of podcast Planetary Radio: Space Exploration, Astronomy and Science

Planetary Radio: Space Exploration, Astronomy and Science

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C
Chris Glein
N
Nick Schneider
R
Rae Paoletta
R
Robbie Herrick
R
Rosaly Lopes
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Sarah Al-Ahmed
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Scott Hensley
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Rosaly Lopes: 作为一名行星科学家,我亲身参与了对木卫一Io火山活动的研究。1979年旅行者号飞掠木星时,木卫一因其奇特的颜色被戏称为“披萨卫星”。当时我们发现木卫一表面没有撞击坑,这暗示着活跃的火山活动抹去了撞击坑。伽利略号探测器后来证实了这一点,并发现了120多个活跃火山,比旅行者号时期多得多。我们还探测到比地球上更热的熔岩,这让我们能够了解数十亿年前地球的样子。木卫一的火山活动是由木星和其他大型卫星的引力拉扯造成的,这种引力作用产生热量,使其内部保持熔融状态。研究木卫一的火山活动有助于我们了解地球上的火山活动,并测试火山喷发的物理学理论。例如,木卫一没有大气层,这使得研究真空中的爆炸性火山变得非常有趣。总的来说,木卫一是一个极端的环境,为我们提供了一个独特的天然实验室,以研究火山活动。

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Volcanoes aren’t just an earthly phenomenon. They’re found all across the Solar System. In this compilation episode of Planetary Radio, we explore volcanic and geothermal activity on planets, moons, and distant dwarf planets. You’ll hear from Rosaly Lopes, Nick Schneider, Rae Paoletta, Robbie Herrick, Scott Hensley, and Christopher Glein as they share insights into everything from lava flows on Venus and eruptions on Io to the mysterious heat signatures of icy bodies like Eris and Makemake. This journey spans over 20 years of Planetary Radio, featuring interviews hosted by both current host Sarah Al-Ahmed and founding host Mat Kaplan. 

Then, our Chief Scientist, Dr. Bruce Betts, returns for What’s Up and shares new findings from NASA’s Juno mission, which recently completed close passes by Jupiter’s volcanic moon, Io.

Discover more at: https://www.planetary.org/planetary-radio/2025-volcanic-worlds)

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