Planetary Radio: Space Exploration, Astronomy and Science
Splat or subsurface ocean? The mysterious positioning of Pluto’s heart
Oct 30, 2024
In this engaging discussion, Adeene Denton, a research scientist specializing in giant impacts, shares her insights into the mysterious heart-shaped feature of Pluto. The conversation explores whether Sputnik Planitia might hide a subsurface ocean beneath its icy surface. Denton elaborates on the intriguing role of oblique impacts in planetary formation and how they shape geological features. The talk is complemented by Bruce Betts, who rounds up the significant impacts across our Solar System, leaving listeners fascinated by the complexities of Pluto and beyond.
56:41
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Quick takeaways
- Recent research suggests Sputnik Planitia's formation may result from a significant impact rather than the existence of a subsurface ocean.
- Dr. Adeene Denton's modeling of oblique impacts reveals insights about the unique elliptical shape of Pluto's Sputnik Planitia region.
Deep dives
Exploring Sputnik Planitia's Origins
The origins of Sputnik Planitia, a prominent feature on Pluto, are examined in the context of potential geological processes. Scientists hypothesize that this heart-shaped area formed as a result of a significant impact rather than a subsurface ocean. The placement of this feature near Pluto's equator raises questions, as impacts typically create features that migrate towards the poles due to mass distribution. Research suggests that the unique location of Sputnik Planitia might indicate complex geological activity beneath its surface.
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