Ocean exploration: how fast is it going? Just 5% of the ocean discovered. doesn't sound like a lot, does it? Why haven't we explored more of the ocean? Think about it: we know space more than what hides in our ocean waters. Let's take a look at these 30 ocean facts that'll send shivers down your spine. Spoiler: there's a 'milky sea' phenomenon you'd definitely wanna see Date: 2022-04-19