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Watch never-before-seen videos about ocean technologies and ocean currents.
What’s out there? What’s down there? Modern tools and technologies are providing oceanographers and astronomers new opportunities to explore the depths of the ocean and the expanse of space.
Explore how the smallest swimming organisms may play an important role in ocean mixing.
Scientists across the globe are trying to figure out why the ocean is becoming more violent and what, if anything, can be done about it.
See how a young boy's fascination with microorganisms led to a man's successful profession investigating plankton's role in ocean health.
Investigate how technology is changing the way we explore and what we know about the ocean.
Ancient Mariners of the Mediterranean
Ancient Shipwrecks of the Black Sea
Economy of Shipping
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Learn how climate change is affecting the surface of the ocean.
Rogue Waves Revealed
Science of Surfline
Catching the Biggest Wave
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Check out Alien Deep photos and video clips from the National Geographic Channel.
Take a voyage via submersible across our planet's largely unexplored ocean floors. Investigate the many mysteries of the sea, including underwater volcanoes and centuries-old shipwrecks.
Dr. Robert Ballard is an ocean explorer who has discovered shipwrecks (the Titanic!) and explored the weird world of hydrothermal vents.
Dr. Kakani Katija is a bioengineer and National Geographic Emerging Explorer.
Did you know that 98% of the ocean remains unexplored? Learn about the history of ocean exploration.
Read a GeoStory to learn about the explorers who have stretched the limits of our knowledge about the undersea world.
View a timeline of important events in underwater exploration.
Robert Ballard talks about his discovery of deep-sea hydrothermal vents.
One of the strangest ecosystems on Earth lies deep under the ocean.
Explore the ocean with illustrations, photographs, and videos.
Use these illustrations with students in Grades 9-12 to explore various marine ecosystems.
Learn more about the Alien Deep expeditions by purchasing the complete series on DVD.
If you liked Xpeditions, you'll love the new media-rich natgeoed.org. Explore the new site now
for activities, maps, interactives, videos, homework help, and more!