Aliens
Modern astronomical observations and experiments support the view that any celestial body in the universe, as long as the conditions are right, may produce primitive life and gradually evolve into advanced organisms. In recent years, scientists have been dedicated to searching for extraterrestrial life. Undersea Creatures
We know that there is life on the earth because it has liquid water, suitable temperature and a breathable atmosphere. However, are these conditions necessary for the existence of life? Are they simply conditions that life on Earth happens to require?
For scientists, they can only use life on Earth as a research sample. Unless life is found on other planets, it will be difficult to answer this question.
In recent years, scientists have discovered a large number of creatures on the earth in places that were once considered to be unable to exist. For example, a variety of organisms live near submarine craters, microorganisms grow deep under the Antarctic glaciers, there is life in rocks deep in the earth, and life can even be found in thermonuclear reactors. Scientists have discovered that many organisms do not obtain energy from sunlight, but directly from chemical substances. It can be seen that the suitable temperature and oxygen that we usually think of are not necessary conditions for the existence of life. In science fiction, life of various forms may actually exist. For example, Wesley's " Blue Blood Man " and "Baohu", Liu Cixin 's " Three Body " and so on.
Theoretically, a planet with liquid water may evolve life as long as it develops long enough. Scientists are currently conducting exploration of extraterrestrial objects such as Mars, Europa, and others. With the advancement of science and technology, human exploration will go further and further, and the day when the secrets will be revealed will become closer and closer.
