Don't know when people became curious about the universe. Perhaps it was a cool summer night when our ancestors looked up at the sky and saw the sky full of nebulae, which naturally spread a desire to explore and a sense of curiosity in the depths of our hearts.

Is exploring the vast sky the ultimate mission of mankind? This mission seems to be engraved into every human gene. From ancient times to now, from generation to generation, human has never stopped exploring the starry sky.

About 4000 years ago, there was a highly developed kingdom called Babylon, one of the four ancient civilizations. Ancient Babylon was located in the two river basins, the famous Euphrates and Tigris rivers. At that time, the civilization and culture of ancient Babylon were very developed, and they were also the first people who paid attention to the stars.

At that time, many people in Babylon were very interested in the sky above their heads, so they selected a person to study it. He was named Nabrimanu, a smart and serious man. His daily work was to observe the sky and record it. Over time, the person in charge of recording became a special profession, and the earliest astronomer of mankind was born.

Although Babylon was highly developed at that time, there was no paper, pen, or even Arabic numerals in that very old age. Nabrimanu can only record the observed stars as vividly as possible on the mud board. The most incredible thing is that under such harsh conditions, he accurately recorded the orbit of mercury, which took a whole decade.