The ocean also belongs to the new exploration field of "space", take a look at NASA's ocean plan

NASA has a new funding program, that is, to study the underwater world environment to understand the limits of life on Earth, in fact, the study of life on the earth's seabed and the study of other satellites with huge primordial oceans are in a sense connected. NASA's new program will combine research into the ocean and space as part of the search for life outside the solar system.

The Discovery Sea World Research Program will be based at the Woods Hole Institute of Oceanographic Whoi, which now has more than $7.6 million in funding. The project will bring together some of the nation's leading marine and space research experts and create a SeaWorld network to share and learn some information together to advance ocean research nationwide.

Scientists have begun to see ice-sheet objects with oceanic features, the so-called ocean world, as the best option for finding life elsewhere, such as Enceladus. But deep-sea microbiologist Peter R. Girguis begs the fundamental question: What is life? Life is likely to develop differently on other planets than on Earth, so knowing as much as possible about the various life forms here can increase our knowledge and understanding of multiple life forms.

"My role in this project is to seriously study how microbes make their living in some of the most extreme environments on Earth." Girguis, a professor of organ and evolutionary biology and one of the five founding researchers exploring the ocean world, said.

To truly understand the limits of life, scientists will visit some of Earth's most extreme environments: deep-sea under-sea craters, where microbes are among the most heat-tolerant organisms on Earth, deserts, and the polar regions. Coldest, hottest, driest. For some potential environments outside of Earth, these are the best replicas of other celestial bodies.

The goal of the program is two, and scientists will look for something very similar to Earth. Scientists will also look for life that may be completely different from what we have on Earth.

Girguis notes that the components of life, such as carbon, nitrogen, hydrogen and sulfur, are found throughout the solar system. Even on Earth, these elements existed long before oxygen dominated our atmosphere. He added that many of these life forms still accompany us and that oxygen is not the only standard.