What Cassini Discovered on the Surface of Tethys Stunned Scientists | Our Solar System's Moons
- Duration 18 minutes
Description
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What could survive an impact so massive it should have shattered the entire world into pieces? Saturn’s scarred survivor Tethys holds dark secrets - a massive crater that spans half its diameter, a colossal trench wrapping around its body, and a bizarre thermal anomaly that looks just like Pac-Man. In this video, we uncover the shocking secrets frozen in Tethys’ icy shell and discover how this scarred world became one of the solar system’s most remarkable survivors.
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1:30 Discovery
2:19 The Ice World
4:19 Ithaca Chasma: The Great Crack
5:14 Bursting Open
8:12 Odysseus Crater
9:15 Healing Ancient Scars
12:09 The Pac-Man Phenomenon
13:15 Why Does Tethys Look Like Pac-Man?
15:58 The Survivor
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References:
“Tethys”, via nasa.gov https://astrumspace.info/tethys
“Cassini captures Tethys in all her glory”, via newscientist.com https://astrumspace.info/cassinitethys
“Photometric Modeling and VIS-IR Albedo Maps of Tethys
From Cassini-VIMS”, via wiley.com https://astrumspace.info/photometricmodelling
“Cassini’s geological and compositional view of Tethys”, via sciencedirect.com https://astrumspace.info/tethyscomposition
“The Geology of Tethys”, via harvard.edu https://astrumspace.info/tethysgeology
“Small Impact Crater Populations on Saturn’s Moon Tethys and Implications for Source Impactors in the System”, via wiley.com https://astrumspace.info/impactcraters
“Plasma, plumes and rings: Saturn system dynamics as recorded in global color patterns on its midsize icy satellites”, via sciencedirect.com https://astrumspace.info/plasmatethys
“PacMan returns: An electron-generated thermal anomaly on Tethys”, via sciencedirect.com https://astrumspace.info/pacman
“A Pair of ‘Pac-Men’”, via nasa.gov https://astrumspace.info/pacmanpair
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Credits:
Writer: Jon McColgan
Video Editor: Nick Shishkin
Researcher: Edie Abrahams
Thumbnail Designer: Peter Sheppard
Channel Manager: Georgina Brenner
Executive Producer: Raquel Taylor
Creator of Astrum: Alex McColgan
With special thanks to:
NASA/ESO/ESA
#astrum #space #tethys