Exploring the deep sea is considered a new study. Then we can explore space. But human beings are not able to reach the deep sea. Another reason may discover new creatures.
An exploration of the deep sea is believed to be seeking new knowledge. Someone we can go to space exploration, but also deep sea man, could not be reached, and one reason may be the new creature discovered.
Discover the deep sea is a study to find new knowledge, we can go to explore space, but it is not able to go to the deep human and one reason may be to discover new beings