Video: This Summer This summer, descend into the unknown. Follow Dr. Robert Ballard and his team as they explore the ocean on the E/V Nautilus. Watch live video 24 hours a day on nautiluslive.org. Related Content View video Video: First Post-Eruption Look at Ruby Seamount View video Video: Hello Hydromedusa of the Marianas View video Video: First Views of Ancient Enrique Guyot