The first astronaut to live inside the space station, Gus Grissom, said, "Never look out if your head is still on your body." ”
Why? Is this the right thing to do? People can never escape the shackles of the solar system, which is almost negligible relative to the entire universe. So sure enough, Voyager 1 identified itself at 23.14 billion kilometers.
NASA/JPL stands on the shoulders of the long-running autonomous Voyager 1, which takes humans through photographs of the solar system to places never seen before in this world. On September 5, 1977, Voyager 1 was launched from Launch Pad 41 (LC-41) at Cape Canaveral Air Force Base, Florida, making it the farthest in the history of science and technology.
Under the starry night sky, which is his home Earth? It is like a drifting speck of dust that forces people to rethink humanity's place in the universe as a whole. It was once said that Voyager 1 is a galloper in the universe, a lonely drifter in the universe. And once it passes through the Crystal Palace and says goodbye to humanity once and for all, I am afraid that all this good things will be the last journey to be unfinished.
The precise navigation of NASA/JPL Voyager 1 can only be pushed by the gears of time. Those gravel are just indentations under the feet of time. The solar system is just a nobody in the long river of time, and scientists understand this, so they cherish the data on any of the journeys of Voyager 1's arrival. Among the pictures that came from thousands of miles away, the most striking was taking pictures of the Earth in orbit.
There is only one Earth in the magnificent Milky Way, and the only Earth is as small as the solar system, the solar system with a diameter of 2 light years compared to the observed universe of 93 billion light years, and the Milky Way galaxy is as small as a grain of sand. Not to mention that there are between 100 billion and 400 billion stars in the Milky Way. Therefore, it is not easy to find another earth in this vast universe.
The source of life.
Even in such a tiny solar system, the cradle of life like Earth is very precious. It offers amazing conditions like liquid water, oxygen, and temperature. In such a good environment, life was finally born. However, this does not mean that life will also be born outside the solar system.
The conditions in the universe are numerous and complex, but not all places are suitable for the birth of life. Therefore, the task of scientists is to find a place that is not only suitable for the birth of life, but also suitable for life to reproduce. In recent years, scientists have found many Earth-like planets by improving satellites and telescopes.
Earth-like planets are like twin sisters of Earth, they are similar in environment, location, and size. Kepler-452b, for example, is one of the Earth-like planets that has received a lot of attention. Located 1,402 light-years from Earth, the planet is about the size of Earth, but with five times the mass of Earth and 385 days a year.
Her nearest star is also habitable, so scientists believe that there may be a lot of mass matter on her surface, which means that her environment is quite warm and suitable for plant growth. Somewhat surprisingly, scientists have also found other Earth-like planets that are very similar to Earth, they have a suitable environment for human habitation, and even the planet's topography is exactly the same as Earth, which is reminiscent of Saturn in the Hitchhiker's Guide to the Milky Way.
All this shows that it is very likely that the miracle of life will not only appear on Earth, but that life will flourish as long as there are conditions suitable for the birth and reproduction of life. However, in the process of the birth of miraculous life, it is necessary to adapt to the long process of all this, so we have reason to believe that there must be other life in this vast universe, not just human species.
The author thinks. No matter how many similar Earths scientists find in the universe, don't forget that there is only one Earth. Only by cherishing it can human beings have a better living space. And the birth of life in the universe is an amazing miracle.
In this boundless starry sky, humans may not be the only creatures. Only by continuing to explore can we make all this a reality.