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EPISODE · May 12, 2026 · 14 MIN

The Mapmaker's Impossible Ocean

from The Breaking Point · host Podcaster

In 1977, geologist Marie Tharp hand-drew the first complete map of the ocean floor—and accidentally revealed a hidden world that rewrote our understanding of Earth itself. Her meticulous sketches uncovered the largest mountain range on our planet, sparked the plate tectonics revolution, and showed us that the ground beneath our feet is far more restless than we ever imagined. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.

What this episode covers

In 1977, geologist Marie Tharp hand-drew the first complete map of the ocean floor—and accidentally revealed a hidden world that rewrote our understanding of Earth itself. Her meticulous sketches uncovered the largest mountain range on our planet, sparked the plate tectonics revolution, and showed us that the ground beneath our feet is far more restless than we ever imagined.

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The Mapmaker's Impossible Ocean

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Frequently Asked Questions

How long is this episode of The Breaking Point?

This episode is 14 minutes long.

When was this The Breaking Point episode published?

This episode was published on May 12, 2026.

What is this episode about?

In 1977, geologist Marie Tharp hand-drew the first complete map of the ocean floor—and accidentally revealed a hidden world that rewrote our understanding of Earth itself. Her meticulous sketches uncovered the largest mountain range on our planet,...

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