Need to explore more to Oceans than Space.

The ocean is a continuous body of saltwater that covers more than 70 percent of the Earth's surface. Ocean currents govern the world's weather and churn a kaleidoscope of life. Humans depend on these teeming waters for comfort and survival, but global warming and overfishing threaten to leave the ocean agitated and empty.

Geographers divide the ocean into four major sections: the Pacific, Atlantic, Indian, and Arctic. Smaller ocean regions are called seas, gulfs, and bays, such as the Mediterranean Sea, Gulf of Mexico, and the Bay of Bengal. Stand-alone bodies of saltwater like the Caspian Sea and the Great Salt Lake are distinct from the world's oceans.

The oceans hold about 320 million cubic miles (1.35 billion cubic kilometers) of water, which is roughly 97 percent of Earth's water supply. The water is about 3.5 percent salt and contains traces of all chemical elements found on Earth. The oceans absorb the sun's heat, transferring it to the atmosphere and distributing it around the world via the ever-moving ocean currents. This drives global weather patterns and acts as a heater in the winter and an air conditioner in the summer.

Alex Stern,discussed the Fermi Paradox, which questions why we haven't found aliens even though it's likely they exist under water.

Explorers discovered the odd-shaped object on the ocean bed of the Baltic Sea in June 2011. 

Dubbed the Baltic Sea Anomaly, the object is a 70-metre long (210 feet) strangely-shaped feature that showed up on sonar laying 100 metres (300 feet) beneath the waves.

Theories as to what the Anomaly could be have ranged from the interesting to the outrageous, with some claiming it could be part of fleet of crashed UFOs on ocean floor.

One possibility, according to a former NASA scientist is because extraterrestrial civilizations are living at the bottom a frozen ocean on a distant water world.

The theory comes from Alan Stern, who now works at the Southwest Research Institute in Texas.

Some may say the theory is far-fetched, but considering we hardly know what is at the bottom of our oceans on Earth, it is impossible to reject the probability alien life can exist underwater elsewhere.

Also a CONSPIRACY theorist has claimed to have captured the image of an massive underwater skyscraper “inhabited by aliens” at the bottom of the Pacific Ocean.

The massive structure measuring a staggering “one mile in height” was found through Google Earth.

It is on a spot located exactly in line with the great Giza Pyramids.

The discovery was made by UFOlogists, zooming in on Google Earth, according to author Shefket, of the site Perfect Edition.

And for firm believers of the Hollow Earth theory, this is the final proof they needed to prove its existence, he added.

Close inspection of the tower’s surroundings have found a “very large gap somewhere deeper than the ocean floor”.

This so called layer is said to be similar, more or less, to what people who claim to have visited it describe.

He added: “These people also claim that the race inhabiting inner Earth don’t really hide there, but have chosen to come out very rarely, which probably means they do so in order to study us and not for resources.”

Hollow Earth theorists and UFO encounter believers don’t normally agree.

But this case is a rare exception.

Backing the theory, Shefket added: “More than 95% of the world’s seas and oceans are entirely unexplored and most of the globe is covered in water, so mankind only knows very little about the planet it inhabits.

“People normally think of UFOs as pure aircraft or spacecraft."

"But if aliens could travel through space then a UFO would have no problem whatsoever submerging and navigating the oceans just like a submarine," he added.

“UFO hunters now believe this tower to be part of a global network of gigantic structures, used by ancient advanced civilisations to transmit and receive large amounts of energy through great distances.

He added: “No country has yet to make an official statement on this discovery, which seems a bit odd, let alone send an exploration team.”

Hollow Earth conspiracy theorists believe the earth is empty hollow, or empty and that superior “alien” humans live inside.