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Mountaineer Vanessa O'Brien Has Reached The Highest And Lowest Points On Earth09:48
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Vanessa O'Brien during her journey to the Challenger Deep in the Pacific Ocean's Mariana Trench. (Photo by Enrique Alvarez)
Vanessa O'Brien during her journey to the Challenger Deep in the Pacific Ocean's Mariana Trench. (Photo by Enrique Alvarez)
This article is more than 1 year old.

Vanessa O'Brien has climbed the tallest mountains on the earth. She's also just completed the journey into the deepest place on Earth: the Challenger Deep in the Pacific Ocean's Mariana Trench.

Host Jeremy Hobson talks to her about the expedition.

This segment aired on June 24, 2020.

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