About oObservatories.

Scientists in Monterey, California placed a Web camera in the deep ocean.

It’s cost $6,000,000 dollars to invented it.

This machine is called “ e "Eye in the sSea.” A" and it’s a part of deep sea observatory MARS.

"it's part of..." : this is a set expression, you don't need to say "a part"

Now we can develop the things in theresearch the deep water, and we can study the reason of change in the sea.

They are planning to build more observatories like MARS.

Learning about the things in deep water is important to human’s technology development.

Scientists in Monterey, California placed a Wweb camera in the deep ocean.

It’s cost $6000000 dollars to invented it.

This machine is called “ eye in the sea.” And it’s a part of the deep sea observatory MARS.

Now we can develop the things in the water, and we can study the reason ofor change in the sea.

I’m not sure what you mean by “develop” here. A word like “research” or “study” would make more sense.

They are planning to build more observatories like MARS.

Learn the things in deep water is important to human’s’ technology development.

About oObservatories.

Scientists in Monterey, California placed a Wweb camera in the deep ocean.

It’s costed $6000000 dollars to invented it.

This machine is called “ eEye in the sSea.” A" and it’s a part of the deep sea observatory MARS.

Now we can develop the things in the water, and we can study the reason ofs for change in the sea.

What things in the water can we develop? This is unclear

They are planning to build more observatories like MARS.

Learning about the things in deep water is important to human’s technology development.