Do We Know More About Space Than The Ocean

We can count stars and tell which direction they are heading and even identify that some stars have planets.
Do we know more about space than the ocean. Part of this could also be attributed to history. When the line you were quoting was made science was trying to drum up the interest and investment in mapping the whole ocean and exploring parts that look interesting. Our knowledge of the ocean when compared to our knowledge of the space we know and can explore is shockingly thin. We have better maps of the surface of mars than we do of our own ocean floor and we understand more about the dark side of the moon than ocean life.
But don t click away yet because that doesn t really get to the point at hand. Space is infinite and there s no possible way we know as much about it right. Well the answer might surprise you. But we definitely know more about the ocean than about space.
Considering that we don t know how big space is or even if there s just one universe we can say with reasonable certainty that we probably know more about the ocean than we do about the cosmos. Despite centuries of ocean exploration we.