This is happening live, so I'm not sure how long this video will be active, but it's interesting enough to share while it lasts. The NOAA is using a robot to explore the bottom of the ocean for our pleasure. Note: There is audio of the crew discussing what's being seen, so it's not just boring ocean non-sounds.
UPDATE: The Verge says this video will run "from about 8:30 ET to 4:00 PM ET each day this week."