James Cameron’s submersible craft Deepsea Challenger reemerged from its record-breaking dive into the Challenger Deep of the Mariana Trench – the deepest known point in the Earth’s oceans – today at 2 UTC (9 p.m. CST on March 25, 2012). Cameron is a National Geographic explorer and filmmaker. He is the first human being to reach the bottom of the 6.8-mile-deep (11-kilometer-deep) undersea trench, traveling in what some call his “vertical torpedo.”
The Mariana Trench in the western Pacific is an unsusaully deep feature in the ocean floor. Challenger Deep is a slot-shaped depression within the Mariana Trench. Its bottom is 11.3 km (7 miles) long and 1.6 km (1 mile) wide, with gently sloping sides. Challenger Deep is located at the southern end of the Mariana Trench.
James Cameron has become the first human to reach and return solo from the 6.8-mile-deep (11-kilometer-deep) undersea Challenger Deep in the Mariana Trench in the western Pacific. He descended solo in his craft Deepsea Challenger. The depth his craft recorded was 10,898 metres (35,755 ft) when he touched down.
Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.