The mother and daughter sat on the sofa and thought about their own thoughts, and the TV in the living room was broadcasting the live video of the successful launch of the Chinese manned spacecraft Shenzhou 9 at 18:37 on June 16, 2012 and the successful rendezvale and docking of Shenzhou 9 and Tiangong-1 for the first time on June 18, and the entry of three astronauts into Tiangong-1.

Chen Youyou said with emotion, I really admire the dedication of these astronauts, no wonder there has been a wave of aerospace fever recently.

The atmosphere in Li Guanghan's house is tense these days, and a little spark can set off a wave of falling and nagging. Rou Jia was full of resentment and always wanted to find a breakthrough, in addition to lowering his eyebrows and pleasing his eyes, being extremely obedient when he was called, he also thought of a good way to improve family relations. He wants to take his family on weekends to the countryside.

Li Guanghan flatteringly asked his son if he wanted to see the stars, and his son suddenly came and opened his eyes wide with interest and asked, "Can you see 'Tiangong No. 1'?" ”

"If it runs right above us, it's visible to the naked eye, like a star." Lee said he wanted to see it himself. But in the city, the lights are too bright at night to do so.

After Chen Aili learned about Li Guanghan's weekend vacation plan, she was a little worried that something would go wrong, after all, Elizabeth and Wei Jiajun had already entered the country. She thought for a moment and said, I'll take my mother with you.

Over the weekend, the two families drove to the primeval birch forest in Huairou Horngoumen, on the outskirts of Beijing. The mountains are undulating, the trees are verdant, and the air is fresh, cool and quiet. Li Guanghan and Chen Aili came out with their families separately, so they felt especially happy and relaxed. In the past six months, the thrilling and bizarre things they encountered have made the two of them very nervous, anxious, and entangled, and they are very insecure in their hearts. Now that we can finally rest in the lap of nature for a few days, everyone is sincerely happy.

During the day, the two families climbed the mountain together, walked in the birch forest, breathed fresh air, and went to the field with the owner of the farm yard to pick vegetables and cook a farm meal. At night, Li Guanghan took everyone to the White Birch Forest Remote Observatory to look at the stars.

There are more than a dozen telescopes of different models to meet the needs of astronomy enthusiasts of all levels. Of course, for Lee Kwang Han, who grew up watching the stars in his hometown, he can see the whole picture more with the naked eye, feeling the vastness of the starry sky and the insignificance of human beings.

"Dad, I saw 'Tiangong No. 1'! Right there, like a star moving fast! The son told everyone excitedly. While everyone was following the child's hand to look for "Tiangong No. 1", Li Guanghan was looking up at the starry sky and observing the twenty-eight stars in the sky. The last time he saw such a beautiful night sky was in winter in Europe, where he had just experienced the test of being injected with the "Spirit of a Thousand Dreams" drug to read brain waves and electric shocks. It's a summer night on the outskirts of Beijing, and the starry sky map has changed somewhat, but he still knows it at a glance.

The purple micro star wall in the center of the North Pole of the sky is star-studded, bright and twinkling, symbolizing the peace of the country and the people. The other Taiwei Xingyuan, Shaowei Xingyuan, and Tianshi Xingyuan are also within the normal brightness. Li Guanghan remembered that the ancients corresponded the starry sky in the sky with the ground, divided ancient China into nine fields, and knew the changes on the ground from observing the heavenly phenomena; In turn, each region of the earth has a corresponding star in the sky. The most representative is Wang Bo's "Preface to the Pavilion of King Teng", "Yuzhang Ancient County, Hongdu New Mansion." The stars are divided into wings, and the ground is connected to Henglu. The "star division wings" here refers to the "wings" of the stars in the seven eastern nights, which represent the "sunny sky" in the southeast.

Li Guanghan looked at the stars in the dark blue sky, and his mind was full of wonders where the "catastrophe of annihilation" predicted by the "wise men of Kunlun" came from. He found that the "Haotian" and the southwest, which represent the west, were somewhat abnormal in the 28 constellations, and some of the six stars they contained were gray in light, some were bright or dark, and the edges were foggy and erratic. The sight reminded him of the conjecture he had come up with when he had put together all the fragments, that the disaster might have occurred on the Tibetan Plateau in China. But after all, this can only be conjecture, and there is no definite evidence to prove that it is not convincing to rely only on the words in one's own dreams and the wonderful changes in one's body.

Chen Aili's mother and daughter are also very excited, because the celestial objects seen through the astronomical telescope are completely different from those seen with the naked eye, which is still very shocking. Lee Kwang-han also happened to teach his son to identify the Big Dipper and the North Star in the sky. He found that the most important "Tianshu" star in the Big Dipper and an important acupuncture point in the human body, the "Tianshu" acupoint, were word-for-word, and the position was very important. This corresponds to the idea of "the unity of heaven and man" and "the induction of heaven and man" advocated by the ancients.

Li Guanghan sat in front of the astronomical telescope, and he also wanted to see the brilliant starlight that he had seen on his balcony that night, which was in the direction of Sirius, and he shook the telescope in the direction of Sirius. Both Sirius A and its companion star Sirius B can be seen, and it is said that if Sirius A turns into a red giant in the future, Sirius B will absorb its heat and produce a supernova explosion, which will destroy the Earth. But that was more than a billion years later, too far away, and it should have nothing to do with the "catastrophe" that has now come. Li Guanghan thought for a moment and moved his gaze to the back of these two stars, farther into the depths of the universe.

In the depths of the universe under the telescope, a small but bright and colorful star is constantly shining. The most important thing is that its light flickers regularly, with different priorities, fast and slow, and it will be repeated again after a while. It's incredible, this is in the starry sky of the universe, all the light has been trekking in the dark universe for thousands of years, and it has gone through how many cosmic rays and gravitational fields have interfered before they can come to us and be captured by us. And it's still so rhythmic and colorful, it's like it's dancing.

Li Guanghan was very excited and hurriedly called Chen Aili over. "Xiao Chen, how are you doing in your astrophysics course? Do you know what star this is? These flickering lights are so different. ”

"Mr. Li, I'm majoring in high-energy physics, and I'm not too good at that." Chen Aili said modestly. She thought to herself that Li Guanghan must have discovered something again. Chen Aili sat in front of the telescope seriously to observe, but she found nothing, and looked at Li Guanghan blankly.

Lee said he saw a star shining regularly, or a beam of light, with a strong sense of rhythm, not like the universe formed naturally.