Astronaut Kathy Sullivan is first woman to dive to deepest point on Earth

A former NASA astronaut who was the first American woman to walk in space has become the world's first woman to reach the deepest point on Earth.

Kathy Sullivan on Saturday (June 6) dove to Challenger Deep, the lowest-known location on the planet. She is now the first woman and eighth person to descend the 7 miles (11 kilometers) to the bottom of the crescent-shaped Mariana Trench, located near Guam in the Western Pacific Ocean.

"Challenger Deep — and back!" wrote Sullivan on Facebook after completing the history-making dive. "10,915 m[eters] on our gauges (35,810 ft)."

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(Image: Kathy Sullivan)

Thirty-six years after launching on the space shuttle Challenger, former NASA astronaut Kathy Sullivan dove to Challenger Deep, the deepest known point on Earth, aboard the "Limiting Factor" submersible, June 7, 2020.

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Former NASA astronaut and geologist Kathy Sullivan has become the first woman to dive to lowest point on Earth, known as Challenger Deep, inside the Mariana Trench.

Sullivan's participation in Caladan Oceanic's "Ring of Fire" expedition comes 36 years after she launched on and performed a spacewalk outside of the space shuttle Challenger in 1984.