National Geographic Education
National Geographic - Education


Exploration Into the Alien Deep

Educational Resources Created from the Alien Deep Series

See other versions of this page:

Photograph courtesy Woods Hole Oceanographic Institute

National Geographic Channel’s Alien Deep is a five-part series that gives viewers an inside look at modern ocean exploration and recent discoveries. Viewers embark on expeditions with Dr. Robert Ballard as he explores geological secrets hidden in the depths of the ocean. Watch Ballard scour the seafloor of the Mediterranean Sea and the Black Sea in search of shipwrecks that offer insight into the lives of ancient mariners.

These short videos and their supporting materials have been made specifically for educational use from clips from the Alien Deep series and never-before-seen film from Ballard's recent expeditions. Featuring topics like rogue waves and hydrothermal vents, this exciting footage engages learners with a wide variety of science and geography topics.

Technology and Innovation

Watch never-before-seen videos about ocean technologies and ocean currents.

  • Technology_Alien Deep_Key Image.jpg

    Ocean Exploration: Technology

    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.

  • edu-TheButterflyEffect-AlienDeep.jpg

    Ocean Circulation and the Butterfly Effect

    Explore how the smallest swimming organisms may play an important role in ocean mixing.

  • edu-OceanConveyorBelt-AlienDeep.jpg

    Ocean Currents and Climate

    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.

  • edu-Plankton_AlienDeep.jpg

    Plankton Revealed

    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.


Learn more about deep-sea geology and explore Mauna Kea, the world's tallest mountain, with these engaging videos and illustrations.

Please update your content.


Learn how climate change is affecting the surface of the ocean.


This material is based in part upon work supported by the National Science Foundation under Grant No. DRL-1114251. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.


  • Required Fields are marked with an asterisk. * Please complete all required fields.


National Geographic Channel

  • Alien Deep Series

    Check out Alien Deep photos and video clips from the National Geographic Channel.

Alien Deep Interactive

  • Explore the Floors of Our Ocean Planet

    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.

Meet the Experts

  • Photo: Robert Ballard

    Dr. Robert Ballard

    Dr. Robert Ballard is an ocean explorer who has discovered shipwrecks (the Titanic!) and explored the weird world of hydrothermal vents.

  • Photo: Kakani Katija

    Dr. Kakani Katija

    Dr. Kakani Katija is a bioengineer and National Geographic Emerging Explorer.

Ocean Exploration

Did you know that 98% of the ocean remains unexplored? Learn about the history of ocean exploration.

Hydrothermal Vents

Learn More About the Ocean

  • Photo: Huge yellow-and-brown fish stares at the camera.

    Ocean Education

    Explore the ocean with illustrations, photographs, and videos.

  • Illustration: Deep Sea Community

    Marine Communities

    Use these illustrations with students in Grades 9-12 to explore various marine ecosystems.

Get the DVD

  • Alien Deep

    Learn more about the Alien Deep expeditions by purchasing the complete series on DVD.

Xpeditions is now archived in National Geographic
Education's new website—

If you liked Xpeditions, you'll love the new media-rich Explore the new site now for activities, maps, interactives, videos, homework help, and more!

Please note: to search for Xpeditions content, check the "include archive" filter.