What New Finds Are Hidden Under Earth’s Unexplored Oceans?

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alienanatomy8

2026-06-22

Earth’s Unexplored Oceans?

What’s under Earth’s unexplored oceans and why should we be curious? Oceans make up 71% of the planet. Of that 71% of Earth, just under 29% has been mapped by high resolution sonar. Even NASA’s best satellites can only see about 1.5km (approximately 1 mile) in depth.

The average depth from ocean surface to floor is about 3.68km (a little over 2 miles). The deepest documented surface to floor depth being The Mariana Trench at 10.98km (approximately 7 miles). Since light gets rapidly absorbed by water and other molecules, those deeper measurements were obtained in clearer water.

With all that being said, that leaves exploration of the remaining 70% of the sea floor to unmanned submarines. This is a costly, tedious task that requires repeated voyages, expensive equipment, and well trained personal. It’s estimated mapping the remainder of the sea floor with subs and sonar would take over 5 billion dollars and 200 years. So again I ask, what is under Earth’s unexplored oceans?

Google Earth’s Unexplored Oceans

Again, light cannot penetrate to the ocean floor, so Google Earth uses shipboard sonar and satellite gravity mapping to create 3D data. So essentially what we have is computer generated images rather than the high-definition photos some people expect. So even with the help of Google Earth, we still don’t know what’s under Earth’s unexplored oceans.

What we do get, though, are some rather intriguing renderings. Although the satellites aren’t capturing high-def photos, the 3D data is still giving us shapes and dimensions. Some of these shapes seem to be submerged islands or even continents. Others appear to be manmade structures.

Such images have stirred interests and speculation among many. It’s hard not to think of stories like Atlantis or Lemuria when looking at some of these Google Earth images. The water levels are said to have risen about 400ft since the last major ice age around 8000 years ago. Several ancient cultures have recorded flood stories. Also, many ancient sunken ruins have already been discovered. Could there be whole sunken cites awaiting discovery under Earth’s unexplored oceans?

What Else Might Be Hiding?

Marine biologists speculate that we’ve only documented up to a third of the organisms living in our oceans. Due to how much of our oceans remain unexplored researchers have hypothesized that as much as 90% of marine life remains unclassified. It’s estimated there are still as many as one million organisms such as fish, crustaceans, and molluscs still to be discovered. As well as potentially millions of microorganisms in Earth’s unexplored oceans.

There may even be a few larger species yet to be revealed. Some have entertained the idea that one or more ancient megafauna species may have survived to modern day. Who knows, perhaps there is still a megalodon or even a plesiosaurus lurking deep down. It wasn’t until 2004 that Japanese researchers brought us images of the first live sightings of giant squids. Maybe there’s also something to those old sailor stories of kraken.

With so many unknowns remaining, the deep sea could be concealing more than just sunken ships and pirate treasure. The real treasure is the vast knowledge waiting to be learned about Earth’s unexplored oceans.